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Chains & Tensioners
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman GT4 3.8L 2015-16
Fits:
Porsche 987.2 Boxster
Porsche 981 Boxster Spyder 2012 to 2016
Porsche 987.2 Cayman
Porsche 981 Cayman GT4 - 2016
Porsche 718 Cayman GT4 RS - 2022 Onwards
Porsche 997.2 Carrera / Carrera 4 - 2009 to 2012
Porsche 997.2 Carrera S / Carrera 4S - 2009 to 2012
Porsche 991 turbo - 2012 to 2018
Porsche 991 GT3 - 2012 to 2018
Porsche 992 GT3 - 2019 Onwards
Replaces OE numbers - 9A110515502, 9A110515503 and 9A110515504
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB109509A
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
Fits:
Porsche 987.2 Boxster / Boxster S - 2009 to 2012
Porsche 981 Boxster S 3.4ltr - 2012 to 2016
Porsche 997.2 Cayman / Cayman S - 2009 to 2012
Porsche 981 Cayman S 3.4ltr - 2012 to 2016
Porsche 981 Cayman GT4 - 2016
Porsche 997.2 - Carrera / Carrera 4 - 2009 to 2012
Porsche 997.2 Carrera S / Carrera 4S - 2009 to 2019
Porsche 991.1 Carrera S 3.8ltr - 2012 to 2016
Porsche 991.1 Carrera 4S 3.8ltr - 2012 to 2016
Porsche 991 turbo - 2012 to 2016
Porsche 991 GT3 - 2012 to 2018
Replaces OE numbers 9A110515302 and 9A110515303
Click 'Zoom in' for large parts diagram.
Diagram ref no 4
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110515304
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Genuine Porsche Original Equipment (OE) timing chain guide used in the timing system. It provides a precisely engineered surface against which the timing chain runs, helping maintain correct chain alignment and reduce chain noise and wear.
Sold each, 2 required per engine.
Fits:
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997 - 2002
Porsche 996 3.4L 1998 - 2001
Diagram ref no 33.
The timing chain guide provides a wear-resistant contact surface that supports the timing chain’s path as it moves over the crankshaft and camshaft sprockets. It helps maintain correct chain alignment, reduces vibration and chatter, and minimises wear on the chain and related components - especially under repeated load cycles and high-RPM conditions.
Installed inside the timing case, this OE guide sits in the chain’s routing path and provides a controlled sliding surface that interacts with the chain links. It works in conjunction with the timing chain tensioner (e.g., 99610517552) to ensure correct chain tension, reduce chain slack, and preserve accurate valve timing as designed by Porsche.
The timing chain guide is a critical wear item in Porsche M96 engines. Over time, the original guide surfaces can wear, crack, or deform due to friction and engine heat. A compromised guide can lead to timing chain noise (often described as “chain rattle”), reduced tension control, or uneven wear of the chain and sprockets.
Replacing worn or failed guides with a Genuine Porsche OE part restores the exact engineered surface, ensures accurate chain control, reduces noise, and helps protect high-cost timing system components - preserving the precision and performance that Porsche designed into the engine.
When to replace:
• Engine exhibits timing chain noise, especially at start-up or idle
• Timing chain slack or vibration is observed
• During major engine service or rebuild
• When original guide shows cracking, abrasion, or wear scoring
• Preventive replacement on high-mile engines
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517353
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
OE Match timing chain guide designed to replicate the original Porsche factory component used in the timing chain system of certain Porsche flat-six engines. It provides a smooth, wear-resistant surface against which the timing chain runs, helping maintain correct chain alignment and reduce noise.
Sold each, 2 required per engine.
Fits:
Porsche 986 Boxster 2.5L / 2.7L / 3.2L 1997 - 2002
Porsche 996 3.4L 1998 - 2001
Diagram Ref No 33.
The timing chain guide provides a guided surface for the timing chain, helping it run smoothly over the cam and crank sprockets. It helps minimize vibration, reduce “chain slap,” and maintain correct chain tracking as the chain cycles through its range of motion.
Function: Installed within the timing cover/case, the guide sits along the chain’s routing path and offers a stable, sliding surface that interacts with the chain links. In conjunction with the timing chain tensioner (such as part 99610517552), it helps maintain correct chain tension, reduces wear on both the chain and sprockets, and supports quiet, efficient engine operation.
Timing chain guides are wear items subject to constant chain contact and engine vibration. Over time, original guides can wear unevenly, crack, or shed material - which can lead to chain noise, reduced tension stability, and accelerated wear on the chain and sprockets. Replacing worn guides with an OE Match component helps preserve timing accuracy and reduces the risk of serious timing system damage.
When to replace:
• Engine exhibits chain rattle or timing noise
• Original guides are cracked, worn, or contaminated
• Timing system is being serviced or rebuilt
• During high-mile preventive maintenance
• After tensioner service or replacement
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517353
The product you are viewing cross references to these numbers
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Keep your engine running with factory precision. The Timing Chain Guide Rail is an OEM Porsche component designed to maintain correct alignment and tension of the timing chain. By guiding chain movement smoothly and accurately, this rail helps ensure perfect synchronization between the crankshaft and camshafts — a critical factor for optimal engine performance, efficiency, and longevity.
Fits:
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster Spyder 718 4.0L (420 Bhp)
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp)
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp)
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500Bhp) 2015-16
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Diagram Ref No 5
What This Product Does:
- The guide/slide rail helps maintain correct path and tension for the timing chain, preventing the chain from flopping, jumping, or hitting other components.
Symptoms Of Failure:
- Rattling or clattering noise from the timing chain cover area (especially at cold start or idle) because the chain may be loose and hitting the guide/rail or adjacent parts.
- Poor engine performance: misfires, rough idle, hesitation on acceleration. This is because incorrect timing = valves and pistons not synchronised.
- Check Engine Light: with timing or cam/crank correlation codes. If the chain jumps or the guide fails significantly, the timing can get out of spec, triggering the ECU.
- Metal shavings in oil or oil pan (in more advanced wear). If the chain or guide breaks up, fragments can circulate.
- Engine won’t start or sudden failure in worst-case: if timing chain jumps many teeth or breaks, the engine may stop or suffer internal damage.
- Because the timing chain and its guides are critical for engine timing: if the guide rail fails and allows the chain to slip, the engine’s valve timing will go off. This can lead to serious internal engine damage (valves hitting pistons, heavy wear) in many high-performance engines.
- Replacing the guide rail (and possibly the chain, tensioners, etc) before catastrophic failure helps avoid a full engine rebuild or replacement, which is far more expensive.
- Even though the part itself may not be extremely expensive (the guide rail), the labour cost of access is high (because to reach it you may need to remove covers, maybe ancillary components) — doing it early is more cost-effective.
- Ensures the engine continues to operate as designed, maintaining performance, reliability and longevity.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB109513A
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
This original Porsche chain guide / tensioner blade forms part of the engine timing chain system, helping guide and support the timing chain while maintaining correct chain tracking and tension.
Fits:
Porsche 997.1 Carrera 3.8L 2005 - 2008
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005 - 2008
Porsche 987C.1 Cayman 2.7L / 3.4L 2006 - 2008
Diagram ref no 30
These parts are used in the engine timing chain system on selected Porsche M96 / M97 flat-six engines.
What This Part Does / Functions
• Guides the timing chain during engine operation
• Works with the chain tensioner to maintain correct chain tension
• Helps keep the timing chain aligned on its correct path
• Reduces timing chain vibration and slap
• Supports accurate camshaft timing
• Replaces a worn, cracked, broken or noisy original tensioner blade
• Helps prevent timing chain wear from poor guidance
• Provides correct Genuine Porsche fitment and material specification
Why Replace This Part?
Timing chain tensioner blades are wear components within the engine timing system. They are exposed to constant chain contact, engine oil, heat cycles, vibration and high engine speeds. Over time, the guide surface can wear, crack or break down, which may cause chain noise, timing instability or accelerated chain wear.
Replacing worn blades with Genuine Porsche timing chain tensioner blades helps restore correct timing chain guidance and supports reliable engine operation.
Common Symptoms of a Worn Timing Chain Tensioner Blade
• Timing chain rattle or slap
• Noise from the timing chain area
• Worn or damaged guide surface
• Broken or cracked plastic guide rail
• Chain tensioner service requiring blade replacement
• Timing deviation faults in severe cases
• Metal or plastic debris found during engine inspection
• Wear found during camshaft timing or engine rebuild work.
When to Replace This Part
• During timing chain service or engine rebuild
• If the tensioner blade is worn, cracked or broken
• When replacing timing chains or chain tensioners
• If timing chain noise is traced to worn guide components
• During camshaft timing repair
• During major engine service with the timing covers removed
• If plastic guide material is found in the oil system
Where It Fits on the Car
These tensioner blades fit inside the engine timing chain / camshaft drive system.
They are fitted by cylinder bank:
• 99610515600 – left side, cylinders 1–3
• 99610515801 – right side, cylinders 4–6
Correct bank selection is essential before ordering.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610515
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Timing chain tensioner blade
This OE Match timing chain tensioner blade is a replacement guide rail used within the engine timing chain system. It provides a controlled contact surface for the timing chain and works together with the chain tensioner to maintain correct chain position and tension.
Fits
Porsche 997.1 Carrera 3.8L 2005 - 2008
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005 - 2008
Porsche 987C.1 Cayman 2.7L / 3.4L 2006 - 2008
Diagram ref no 30
What This Product Does
Located within the camshaft drive assembly, the blade provides a contact surface for the chain. It cooperates with the tensioning mechanism to control chain movement and support consistent tracking on applicable M96 / M97 flat-six engines.
Functions
- Supports the chain along its intended route.
- Transfers tensioner action through the blade.
- Helps limit unwanted chain movement and vibration.
- Contributes to stable camshaft drive operation.
Technical Details
- 99610515600: Left bank, cylinders 1–3.
- 99610515801: Right bank, cylinders 4–6.
Symptoms of Fault
- Rattling or slapping sounds around the chain drive.
- Visible scoring, fractures or missing sections on the blade.
- Guide fragments discovered during oil-system inspection.
- Timing deviation faults requiring further investigation.
These findings do not establish blade failure on their own; inspect the complete timing assembly before selecting replacement components.
Why Replacement Matters
Repeated chain contact, temperature changes and oil exposure can deteriorate the guiding surface. Renewing a damaged blade addresses wear at that contact point. OE Match provides a Porsche-focused replacement option, with application and specification checks forming part of its component assessment.
Consider blade renewal during chain-drive repairs, camshaft timing work or an engine rebuild when inspection identifies deterioration. Assess the chains, tensioners and neighbouring guides together rather than assuming one replacement will resolve every source of noise.
FAQs
Which reference should I select?
Match the original reference and cylinder bank: 99610515600 serves cylinders 1–3, while 99610515801 serves cylinders 4–6.
Does start-up noise prove the blade needs replacing?
No. Increasing or persistent rattling warrants diagnosis of the chain drive, including its tensioners and guides.
Should related guides be inspected?
Yes. Check adjoining timing components for wear whenever the assembly is accessible.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610515
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 992.1 Turbo 3.8L 2020-24
- Porsche 992.1 Turbo S 3.8L 2020-24
- Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
- Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
- Porsche 992.2 Turbo S 3.6L 2024>>
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Sold individually; x2 per engine.
Fits:
Porsche 987-2 Boxster 2009-12
Porsche 987-2 Cayman 2009-12
Porsche 981 Boxster 2012-16
Porsche 981 Boxster Spyder 2016
Porsche 981 Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 718 (982) Boxster GTS 4.0L 2017>>
Porsche 718 (982) Boxster Spyder / RS 2019>>
Porsche 718 (982) Cayman GTS 4.0L 2017>>
Porsche 718 (982) Cayman GT4 / RS 2019>>
Porsche 997-2 Carrera 2009-12
Porsche 997-2 Turbo 2010-13 - Excludes GT2
Porsche 991-1 Carrera 2012-16
Porsche 991 Turbo / GT2 RS 2014-20
Porsche 991 GT3 / RS 2014-21
Porsche 992-1 Turbo 2020>>
Porsche 992 GT3 / RS 2021>>
Diagram ref. 4.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0PB109507E
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
OE Match timing chain for Porsche Boxster, Cayman, 997, and 991 models. This replacement timing chain helps maintain accurate camshaft timing and reliable engine operation.
Sold individually
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2013 - 2016
Porsche 997.2 2009 - 2012
Porsche 991.1 2012 - 2016
Diagram ref no 1
The timing chain synchronises engine rotation between the crankshaft and camshafts. Correct timing chain operation is essential for accurate valve timing, smooth running, engine performance, and long-term reliability.
Functions
• Replaces the engine timing chain
• Helps synchronise crankshaft and camshaft movement
• Supports accurate valve timing
• Helps maintain smooth engine running and performance
• Used during timing chain, camshaft drive, or engine rebuild service
• Replaces stretched, noisy, worn, or damaged timing chains
• OE Match replacement for Porsche engine timing system repair.
Why Replace This Part?
Timing chains are highly loaded engine components and can wear, stretch, become noisy, or suffer damage over time. A worn or stretched timing chain may cause timing noise, poor running, fault codes, reduced performance, or incorrect camshaft timing. Replacing the timing chain helps restore correct engine timing and protects related timing system components.
When to Replace This Part
• Timing chain noise or rattle is present
• Timing chain stretch is detected
• Camshaft timing faults or related engine codes are present
• Engine performance is reduced or running is uneven
• Timing chain guides, tensioners, or camshaft drive parts are being replaced
• Engine rebuild or major timing service is being carried out
• Preventative replacement is required during Porsche engine maintenance
Where it fits on the car
This timing chain fits within the engine timing / camshaft drive system on Porsche Boxster, Cayman, 997, and 991 models. Exact chain position can vary depending on engine type and timing layout.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110514203
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Restore your Porsche’s timing drive system with this genuine OEM chain. Designed for Porsche 987.2 / 981 / 982 Boxster / Cayman / 997.2 / 991.1 / 991.2 2009>> fitments, this timing chain drives the crank to oil pump/cam chain path. If your engine is showing timing cover noise, fault codes or high mileage, a new timing chain is key to maintaining performance and reliability.
Fits:
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 718 2.0L Manual (300 Bhp)
- Porsche Boxster 718 2.0L PDK (300 Bhp)
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- Porsche Boxster T 718 2.0L Manual (300 Bhp)
- Porsche Boxster T 718 2.0L PDK (300 Bhp)
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300Bhp)
- Porsche Cayman 718 2.0L PDK (300Bhp)
- Porsche Cayman S 718 2.5L Manual (350Bhp)
- Porsche Cayman S 718 2.5L PDK (350Bhp)
- Porsche Cayman T 718 2.0L Manual (300Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Diagram Ref No 10
What This Product Does:
- The timing chain synchronises the crankshaft with other components — here especially linking to the oil pump / cam drive path — so that the engine’s valves operate at the correct times relative to piston movement.
- Over time, chains can stretch, guides may wear, tensioners may degrade — all of which will allow slack in the drive, noise, timing drift or even failure.
- Essentially, this chain is a critical link in the engine’s timing system — it must stay within spec to ensure the engine runs as designed.
When You Should Consider Replacement:
- Rattling or clattering noise from the engine’s timing‐cover area, especially on cold start, idle or at low revs. Slack chain often causes this.
- Timing-related fault codes — cam/ crank correlation errors, or variable valve timing issues that could stem from chain/tensioning irregularity.
- Loss of engine performance, rough running, mis-fires, or inconsistent response — because timing drift can affect the engine’s breathing and ignition.
- High mileage or long service interval without chain replacement — wear accumulates even if symptoms are subtle.
- Visual inspection (where possible) may show wear or elongation in chain links, damaged guides or tensioner issues.
Why Replacement Matters:
- Engine protection: A failed or excessively worn timing chain can cause piston-valve contact, or major internal engine damage. Replacing the chain significantly reduces that risk.
- Maintains timing accuracy: A new chain ensures correct timing events — vital for power delivery, engine smoothness, efficiency and longevity.
- Noise & NVH improvement: Slack or worn chain components often produce unwanted noise and degrade refinement — renewed parts improve comfort.
- Cost-efficiency: Since accessing the chain involves significant labour (front engine cover, oil pump, possibly other removal), replacing the chain while you’re already in saves repeated work.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110523302
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
The IWIS Timing Chain is a replacement internal engine timing component for compatible Porsche applications. The timing chain forms part of the engine's mechanical timing system, helping maintain accurate synchronisation between the crankshaft, camshaft drive and associated timing components.
Fits:
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 718 2.0L Manual (300 Bhp)
- Porsche Boxster 718 2.0L PDK (300 Bhp)
- Porsche Boxster S 718 2.5L Manual (350 Bhp)
- Porsche Boxster S 718 2.5L PDK (350 Bhp)
- Porsche Boxster T 718 2.0L Manual (300 Bhp)
- Porsche Boxster T 718 2.0L PDK (300 Bhp)
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S 3.0L (420 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300Bhp)
- Porsche Cayman 718 2.0L PDK (300Bhp)
- Porsche Cayman S 718 2.5L Manual (350Bhp)
- Porsche Cayman S 718 2.5L PDK (350Bhp)
- Porsche Cayman T 718 2.0L Manual (300Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Diagram Ref No 10
What This Product Does:
- The timing chain synchronises the crankshaft with other components — here especially linking to the oil pump / cam drive path — so that the engine’s valves operate at the correct times relative to piston movement.
- Over time, chains can stretch, guides may wear, tensioners may degrade — all of which will allow slack in the drive, noise, timing drift or even failure.
- Essentially, this chain is a critical link in the engine’s timing system — it must stay within spec to ensure the engine runs as designed.
When You Should Consider Replacement:
- Rattling or clattering noise from the engine’s timing‐cover area, especially on cold start, idle or at low revs. Slack chain often causes this.
- Timing-related fault codes — cam/ crank correlation errors, or variable valve timing issues that could stem from chain/tensioning irregularity.
- Loss of engine performance, rough running, mis-fires, or inconsistent response — because timing drift can affect the engine’s breathing and ignition.
- High mileage or long service interval without chain replacement — wear accumulates even if symptoms are subtle.
- Visual inspection (where possible) may show wear or elongation in chain links, damaged guides or tensioner issues.
Why Replacement Matters:
- Engine protection: A failed or excessively worn timing chain can cause piston-valve contact, or major internal engine damage. Replacing the chain significantly reduces that risk.
- Maintains timing accuracy: A new chain ensures correct timing events — vital for power delivery, engine smoothness, efficiency and longevity.
- Noise & NVH improvement: Slack or worn chain components often produce unwanted noise and degrade refinement — renewed parts improve comfort.
- Cost-efficiency: Since accessing the chain involves significant labour (front engine cover, oil pump, possibly other removal), replacing the chain while you’re already in saves repeated work.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110523302
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Fits:
Porsche 996 3.4L C2 / C4 1998-01
Porsche 986 Boxster 1997-04
Click 'Zoom in' for large parts diagram.
Diagram ref no 6.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517054
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Fits:
Porsche 996 3.4L C2 / C4 1998-01
Porsche 986 Boxster 1997-04
Click 'Zoom in' for large parts diagram.
Diagram Ref No 6.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517054
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Fits:
Porsche 996 3.4L 1998-00
Porsche 986 Boxster 1997-01
Click 'Zoom in' for large parts diagram.
Diagram Ref No 17.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517157
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
This OE Match timing chain is a replacement camshaft timing chain for Porsche 996 and 986 Boxster models. It is designed to match the original-style fit and function, helping maintain correct engine timing and reliable valve train operation.
1 per engine
Fits:
Porsche 996 3.4L 1998 - 2000
Porsche 986 Boxster 1997 - 2001
Diagram Ref No 17
The timing chain links the crankshaft drive to the camshaft drive system, keeping the camshafts synchronised with the crankshaft. Correct timing allows the engine valves to open and close at the right moment, supporting smooth running, correct combustion, and dependable engine performance.
Functions
• Drives the camshaft timing system
• Helps keep crankshaft and camshaft timing synchronised
• Supports correct valve opening and closing timing
• Helps maintain smooth engine running and performance
• Replaces stretched, noisy, worn, or damaged timing chains
• Supports reliable valve train operation
• OE Match replacement for engine timing repair or rebuild work.
Why Replace This Part?
Timing chains are exposed to constant load, heat, oil, and high-speed engine operation. Over time, a chain can stretch, wear, become noisy, or affect accurate camshaft timing. A worn timing chain may cause rattling noises, poor running, timing deviation faults, reduced performance, or potential engine damage if left unresolved. Replacing the timing chain helps restore accurate timing and long-term engine reliability.
When to Replace This Part
• The timing chain is stretched, worn, noisy, or damaged
• There is rattling from the timing chain area
• Camshaft timing deviation faults are present
• The engine has poor running, misfires, or reduced performance linked to timing issues
• Chain guides, tensioners, sprockets, or related timing components are being replaced
• The engine is being rebuilt or overhauled
• Preventative replacement is being carried out during major engine service.
Where it fits on the car
This timing chain fits inside the engine timing chain system on Porsche 996 and 986 Boxster models. It forms part of the camshaft drive arrangement and should be installed according to the factory timing layout and engine specification.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517157
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Fits:
Porsche 996 3.4L C2/C4 1998-01
Porsche 986 Boxster 1997-04
Click 'Zoom in' for large parts diagram.
Diagram ref No 26.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610517753
The product you are viewing cross references to these numbers
-
camshaft driving mechanism 986 Boxster 1997-04 103-10
-
camshaft driving mechanism 987 Boxster / Boxster S 2005-08 103-10
-
Valve control (Model: A120,A121) 987.2 Boxster / Boxster S 2009-12 103-015
-
Replacement engine 981 Boxster / Boxster S 2012-2016 101-000
-
Valve control 981 Boxster / Boxster S 2012-16 103-015
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Replacement engine 981.SP Boxster Spyder 2016 101-000
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Valve control 981.SP Boxster Spyder 2016 103-015
Precision Timing Chains & Tensioners – Engine Synchronisation and Reliability for Porsche Models
The timing chain system is one of the most critical components of a Porsche engine, ensuring perfect synchronisation between the crankshaft and camshafts. This precise coordination allows valves to open and close at the right moment, maintaining smooth power delivery, fuel efficiency, and long-term engine health.
At Design911, we supply a comprehensive range of precision-engineered timing chains, guides, and hydraulic tensioners designed to meet or exceed manufacturer performance standards. Each component is manufactured from high-strength materials for exceptional wear resistance and durability — vital for high-revving, performance-oriented Porsche engines.
What Do Timing Chains and Tensioners Do?
A timing chain connects the crankshaft to the camshafts, ensuring accurate valve timing. The tensioner keeps the chain taut to prevent slack, vibration, or noise, maintaining precise timing under all load conditions.
Core Functions:
- Synchronise engine timing between the camshaft and crankshaft.
- Maintain valve timing accuracy for optimal combustion and power.
- Prevent chain slack and noise through hydraulic or spring-loaded tensioning.
- Ensure long-term reliability in both performance and everyday driving.
Together, these components preserve the exacting standards of Porsche engine operation — vital for both power and longevity.
Why Do Timing Chains and Tensioners Fail?
Over time, wear, oil degradation, and heat cycles can cause timing components to deteriorate. When neglected, they may stretch, seize, or lose tension — leading to severe engine damage.
Common Causes of Failure Include:
- Chain stretch or elongation, resulting in timing misalignment.
- Worn or leaking hydraulic tensioners, causing chain rattle on start-up.
- Contaminated or degraded engine oil, accelerating wear.
- Broken chain guides from heat stress or material fatigue.
- Insufficient oil pressure, reducing hydraulic tensioner performance.
A failing timing chain system can lead to poor performance, rough idling, check-engine lights, or — in extreme cases — catastrophic valve-to-piston contact.
Why Replace with Performance-Grade Timing Components?
Replacing aging timing components with manufacturer-quality parts ensures reliable valve timing, smoother operation, and peace of mind.
Key Benefits:
- Restores precise valve timing for peak performance and efficiency.
- Prevents engine noise and vibration caused by chain slack.
- Protects against catastrophic engine damage due to chain failure.
- Constructed from heat-treated, high-grade steel for long service life.
- Engineered to match original timing profiles for Porsche engines.
- Perfect fitment for classic air-cooled and modern water-cooled models.
Whether performing preventive maintenance or a complete rebuild, these timing chains and tensioners deliver race-ready reliability with road-tested durability.
Highlights:
- Precision-engineered timing chains, guides, and tensioners for Porsche engines.
- Restores timing accuracy and eliminates start-up rattle or misfire issues.
- Built from heat-treated alloy steel for maximum longevity.
- Hydraulic and mechanical tensioners available for various Porsche models.
- Ideal for performance rebuilds and preventative maintenance.
- Compatible with air-cooled and water-cooled Porsche engines.