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Belts / Tensioners / Rollers
- 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
The Drive Belt Tensioning Roller, identified by part number 997.102.117.00, is a critical component in the accessory drive system of several Porsche models, including the 996, 987 (Boxster and Cayman), and 997 (Carrera) equipped with manual transmissions. This roller maintains proper tension on the serpentine belt, ensuring the efficient operation of engine accessories such as the alternator, power steering pump, and air conditioning compressor.
Fits:
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08 Manual transmission
- Porsche 996 C2 3.4L 1997-08/01 6-speed Manual transmission
- Porsche 996 C4 3.4L 1997-08/01 6-speed Manual transmission
- Porsche 996 C2 3.6L 09/01-2005 6-speed Manual transmission
- Porsche 996 C4 3.6L 09/01-2005 6-speed Manual transmission
- Porsche 996 C4S 3.6L 09/01-2005 6-speed Manual transmission
- Porsche 997 MK1 Carrera 2 3.6L 2005-08 6-speed Manual transmission
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08 6-speed Manual transmission
- Porsche 997 MK1 Carrera 4 3.6L 2005-08 6-speed Manual transmission
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08 6-speed Manual transmission
- Porsche Cayman 2.7L 987C 2006-08 Manual transmission
- Porsche Cayman S 3.4L 987C 2005-08 Manual transmission
Common Tensioning Roller Issues and Why Replacement is Necessary. Over time, a tensioning roller can wear down due to constant exposure to engine heat and mechanical stress. Typical problems include:
- Bearing Wear: The internal bearing may deteriorate, causing noise and reducing performance.
- Seized Pulley: Rust or corrosion can lock the pulley, disrupting proper belt tension.
- Cracked or Damaged Pulley: Physical damage can misalign the belt and hinder the roller’s function.
- Replacing a worn tensioning roller is crucial to maintain proper belt operation, prevent squealing noises, and avoid potential damage to other engine components.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710211700
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
Fits:
Porsche 986 Boxster 2.7L / 3.2L / 3.4L Manual or Tiptronic gearbox
Porsche 996 Carrera 3.4L / 3.6L 1997-05 Tiptronic gearbox
Porsche 997.1 Carrera 3.6L 2005-08 Tiptronic gearbox
Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005-08 Tiptronic gearbox
Porsche 987C.1 Cayman 2.7L / 3.4L 2005-08 Tiptronic gearbox
Click 'Zoom in' for the large parts diagram.
Diagram ref No 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610211757
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 4 3.6L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
The OE MATCH Drive Belt Tensioning Roller is a high-quality replacement auxiliary drive belt component designed for selected Porsche 986 Boxster, 996 Carrera, 987 Boxster, 987 Cayman and 997 Carrera models.
Fits:
- Porsche 986 Boxster 2.7L / 3.2L / 3.4L Manual or Tiptronic gearbox
- Porsche 996 Carrera 3.4L / 3.6L 1997-05 Tiptronic gearbox
- Porsche 997.1 Carrera 3.6L 2005-08 Tiptronic gearbox
- Porsche 987.1 Boxster 2.7L / 3.2L / 3.4L 2005-08 Tiptronic gearbox
- Porsche 987C.1 Cayman 2.7L / 3.4L 2005-08 Tiptronic gearbox
Diagram Ref No 8
Manufactured to provide OE-style fitment and dependable performance, this tensioning roller helps maintain correct auxiliary drive belt operation by supporting the belt tensioning mechanism and ensuring smooth belt movement.
Also known as a belt tensioner pulley, this component works alongside the belt tensioner assembly to help maintain the correct tension and alignment of the engine's auxiliary drive belt. This allows belt-driven accessories, including the alternator, water pump and other applicable components, to operate efficiently.
The roller incorporates a rotating bearing assembly designed to withstand continuous operation, engine vibration and varying rotational speeds.
Over time, exposure to engine heat, bearing fatigue, contamination and mechanical stress can cause the original roller to deteriorate, resulting in unwanted noise, excessive movement or bearing failure.
Ideal for replacing worn, noisy, seized or damaged original rollers, the OE MATCH Drive Belt Tensioning Roller offers a practical replacement solution for routine servicing, preventative maintenance and auxiliary drive system repairs.
What This Product Does:
The drive belt tensioning roller forms part of the engine's auxiliary belt tensioning system. It provides a smooth rotating contact surface for the drive belt while working with the tensioner mechanism to maintain the correct belt tension and routing.
Its key functions include:
- Drive Belt Tension Support: Works with the tensioning mechanism to help maintain the correct operating tension of the auxiliary drive belt.
- Belt Guidance: Helps guide the belt along its designated route around the engine's pulley system.
- Smooth Belt Rotation: The integrated bearing allows the roller to rotate freely as the drive belt moves across its surface.
- Belt Alignment: Helps maintain correct belt tracking and reduces unwanted lateral movement.
- Auxiliary Component Operation: Supports reliable power transmission to belt-driven accessories, including the alternator and water pump where applicable.
- Reduced Belt Slippage: Helps maintain consistent belt contact with the surrounding pulleys.
- Vibration Reduction: Contributes to stable belt operation by helping minimise excessive movement and vibration.
- Reduced Operating Noise: A correctly functioning roller helps maintain smooth and quiet auxiliary belt operation.
- Premature Belt Wear Prevention: Proper pulley rotation and alignment help reduce unnecessary belt friction and uneven wear.
- OE-Style Replacement: Maintains the original auxiliary drive belt arrangement without requiring modification.
Symptoms Of Wear Or Failure:
Over time, continuous rotation, engine heat, vibration and bearing wear can cause the drive belt tensioning roller to deteriorate.
Common signs include:
- Squealing or Chirping Noises: High-pitched sounds from the auxiliary belt area may indicate worn bearings, belt slippage or incorrect belt alignment.
- Grinding or Rumbling Sounds: A deteriorating roller bearing may produce grinding, growling or rumbling noises while the engine is operating.
- Excessive Pulley Play: Side-to-side movement or looseness can indicate wear within the roller bearing.
- Rough Pulley Rotation: A worn bearing may feel rough, notchy or resistant when rotated by hand with the belt removed.
- Seized or Sticking Roller: Severe bearing failure can prevent the pulley from rotating freely, creating excessive friction against the drive belt.
- Visible Pulley Wobble: A damaged bearing or mounting arrangement may cause the roller to rotate unevenly.
- Uneven Drive Belt Wear: Incorrect pulley alignment can cause accelerated wear, fraying or damage along the belt edges.
- Cracked or Damaged Pulley Surface: Physical damage, cracking or deformation may affect correct belt operation.
- Excessive Belt Vibration: A worn roller or faulty tensioning mechanism may cause the belt to move excessively while the engine is running.
- Burning Rubber Smell: A seized or partially seized roller can generate friction and heat, potentially damaging the belt.
- Drive Belt Slipping or Dislodging: Severe roller wear or incorrect alignment may cause the belt to slip or move out of position.
- Auxiliary Component Failure: If the roller seizes and causes the drive belt to break, belt-driven accessories may stop operating.
- Battery Charging Warning: Loss of auxiliary belt drive can prevent the alternator from charging the battery correctly.
Why Replacement Matters:
- Replacing a worn or damaged drive belt tensioning roller is an important part of maintaining the reliability, performance and correct operation of your Porsche's auxiliary drive belt system.
- The auxiliary drive belt transfers rotational power from the engine to essential accessories. The tensioning roller plays a vital role in supporting the belt tensioning mechanism and maintaining smooth belt movement.
- As the roller bearing deteriorates, it can develop excessive friction, looseness or noise. Continued operation with a worn roller may result in incorrect belt alignment, increased vibration and premature drive belt wear.
- If the bearing becomes severely damaged or seizes completely, the drive belt can overheat, shred or break, potentially causing the sudden loss of important belt-driven accessories.
- Depending on the engine configuration, auxiliary belt failure can affect the alternator and water pump. Loss of alternator operation may lead to battery discharge and electrical system problems, while loss of water pump drive can result in engine overheating.
- A damaged tensioning roller may also increase stress on the surrounding tensioner assembly, guide pulleys and drive belt, potentially leading to additional component damage and more expensive repairs.
- Installing a replacement OE MATCH tensioning roller helps restore smooth bearing rotation, proper belt guidance and dependable auxiliary drive operation.
- Replacing worn rollers during scheduled belt servicing is particularly beneficial, as it provides an opportunity to inspect the condition of the drive belt, tensioner and associated pulleys before a more serious failure occurs.
- For Porsche owners, maintaining the auxiliary drive system is essential for dependable everyday operation, particularly on ageing vehicles where original pulley bearings may have experienced years of heat exposure and continuous use.
- The OE MATCH Drive Belt Tensioning Roller 99610211757/1 provides an OE-style replacement solution designed to maintain reliable belt operation, reduce unwanted noise and help protect essential engine accessories.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610211757
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 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- 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 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT2 RS 2011-13
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Sold individually; x2 required per vehicle.
Fits:
Porsche 986 Boxster 1997-04
Porsche 987-1 Boxster 2005-08
Porsche 987-1 Cayman 2006-08
Porsche 996 Carrera 1998-05
Porsche 996 Turbo 2001-05
Porsche 996 GT3 1999-05
Porsche 997-1 Carrera 2005-08
Porsche 997-1 Turbo 2007-09
Porsche 997 GT3 2007-11
Porsche 997-2 GT2 RS 2011
Diagram ref. 7.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610236550
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
Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Porsche 996 C2/C4/C4S 1998-04
Porsche 997 Carrera 2005-08
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610236051
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
Fits:
Porsche 986 Boxster 1997-04
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2005-08
Porsche 996 C2/C4/C4S 1998-04
Porsche 997 Carrera 2005-08
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610236051
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
replacement for OE 99710224101
Fits on all Porsche 986, 996, 987, 997 models EXCEPT 2.9L (multi hole crank pulley pattern), DFI engines, GT2, GT3 and Turbo.
Increase your engine output by reducing the draw of the engine's ancillaries ie the power steering pump, Air Conditioning, water pump and alternator by slowing them down and reducing the horsepower they use.
Underdrive pulley is one of the cheapest returns for the money spent when it comes to actual performance and horsepower gains for track and street use cars.
Installation tool (wrench) included, new OEM washer and crankshaft pulley bolt is recommended but not included with this product.
Please add Drive Belt for Under Drive Pully cars WITH Aircon Porsche 996/ Boxster 986/997 99610215199/1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3609001608
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
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Sold individually.
Fits:
Porsche 986 Boxster 1997-04
Porsche 996 Carrera 1998-05
Diagram ref. 5.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90006711704
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
Sold Individually.
Fits:
Porsche 986 Boxster 1997>>2004
Porsche 987.1 Boxster MKI 2005>>2008
Porsche 987.1 Cayman MKI 2006>>2008
Porsche 996 Carrera 1998>>2005
Porsche 997.1 Carrera MKI 2005>>2008
Diagram Ref No 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90038702001
The product you are viewing cross references to these numbers
- 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
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Fits:
Porsche 986 Boxster 2.7L 2000-04
Porsche 986 Boxster S 3.2L 2000-04
Porsche 996-1 Carrera 3.4L 1999*
Porsche 996-1 Carrera 3.4L 2000-01
Porsche 996-2 Carrera 3.6L 2002-05
Diagram ref. 14.
*NOTE: There is a VIN split for 1999 model year 996 Carrera models, and this bolt is intended for the later engine type—specifically, engines from number M66X 06241 onward (Carrera 2) or M68X 02731 onward (Carrera 4 models with electronic throttle, option code 620). If you're unsure about compatibility, feel free to contact us with your vehicle’s VIN, or measure your existing bolt to confirm fitment...
- If it measures M8 x 60, this is the correct part.
- If it measures M8 x 55, you will need the earlier version instead.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90037815901
The product you are viewing cross references to these numbers
- 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
Fits:
Porsche 996 >> 1999 Tiptronic
Porsche 996 >> 1999 Manual Without Air Con
Porsche 996 2000 >> Onwards ALL
Click 'Zoom in' for large parts diagram.
Diagram ref no 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99614722360
The product you are viewing cross references to these numbers
- 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
Fits:
Porsche 996 >> 1999 Manual With Air Con
Click 'Zoom in' for large parts diagram.
Diagram ref no 13
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99614722353
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
replacement for OE 99710224101
Fits on all Porsche 986, 996, 987, 997 models EXCEPT 2.9L (multi hole crank pulley pattern), DFI engines, GT2, GT3 and Turbo.
The RSS Harmonically Damped Underdrive Pulley is ideal for engines that are running light weight flywheels, engines that are built - bored/stroked and engines that are driven hard.
• Offers improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator without detrimental effects on said ancillary systems.
• Dampens/reduces internal engine harmonics for improved engine performance, efficiency and longevity.
• Recommended for street or track use
Installation tool (wrench) and new OEM Pulley Washer included:
Dyno Image shows HP & TQ gain on 2005 997.1 Carrera S:
Baseline Dyno Run Mods: OEM Crank Pulley, OEM Software, Cargraphic Headers, Hi flow 200 Cell Cats, and Medium Sound Cargraphic Sport Mufflers
Modified Dyno Run: Added RSS Pulley (Part #608) to baseline car with existing mods:
+16 HP / +8 ft lbs TQ
*** NOTE: We recommend using/sourcing a new OEM Crank Shaft Pulley Bolt for your specific vehicle when installing the RSS Pulley. (Not Included with 608 Kit)
Please add Drive Belt for Under Drive Pully cars WITH Aircon Porsche 996/ Boxster 986/997 99610215199/1
MADE IN USA
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
608
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 4 3.6L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Replacement for OE 99610211562, 99610511563,
The RSS Lightweight High Strength Underdrive Pulley is made from 6061-T6 aluminum. A must for any street or track enthusiast
• Offers improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator without detrimental effects on said ancillary systems.
• Installation wrench included.
• Works on all Porsche 986, 996, 987, 997 models EXCEPT 2.9L (multi hole crank pulley pattern), 3.8L, DFI engines, GT2, GT3 and Turbo.
*** NOTE: We recommend using/sourcing a new OEM Crank Shaft Pulley Bolt for your specific vehicle when installing the RSS Pulley. (Not Included with 601 Kit)
Please read fitting instructions before purchase.
**Please note you will need a new shorter Pully Belt
99610215199/1
Under drive pulley w/ air conditioning - 2100mm
99610215198/1
Under drive pulley w/o air conditioning - 1905mm
Underderive Pulley Installation Instructions - CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
601
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
Fits:
Porsche 987 Boxster 2005-08
Porsche 987C Cayman 2006-08
Porsche 997 Carrera 2005-08
Click 'Zoom in' for large parts diagram.
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710226000
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
Restore proper serpentine belt tension and quiet operation with this tensioner element for Porsche 987 Boxster, 987C Cayman, and 997. Built to OEM dimensions and spring rate.
Fits:
Porsche 987 Boxster 2005 - 2008
Porsche 987C Cayman 2006 - 2008
Porsche 997 Carrera 2005 - 2008
Diagram ref no 2
Applies constant, calibrated force to the serpentine belt, compensating for belt stretch and engine vibrations to prevent slip, squeal, and premature belt wear. Often catalogued as “tensioner element / accessory drive belt tensioner.”
Position on car: Front of engine, serpentine belt drive—bolts to the bracket/mount assembly.
Why & when to replace:
• Belt squeal, flutter, or visible tensioner wobble
• Rough/idling noises from the front of engine, or belt glazing
• During belt service or accessory repairs (alternator, A/C, P/S)
Replacing the unit restores correct belt tension and accessory reliability
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99710226000
The product you are viewing cross references to these numbers
-
belt tensioner and belt drive for 996 CARRERA 2/4/4S 1998-05 101-10
-
wheel carrier, wheel hub 996 1998-05 401-05
-
power steering, power-steering pump, container 996 1998-05 403-03
-
rear axle, wheel carrier, control arm, wheel hub 996 1998-05 501-00
-
rear axle, side section, bracket 996 1998-05 501-01
-
brake lines, front axle, underbody, vacuum line 996 1998-05 604-10
-
brake line, underbody, rear axle, vacuum line 996 1998-05 604-15
Engine Rebuild Belts, Tensioners & Rollers – Precision Timing for Reliable Porsche Performance
Engine rebuild belts, tensioners, and rollers are essential components in maintaining your Porsche’s precise engine timing and smooth operation. These parts work together to synchronise the camshaft and crankshaft, ensuring valves open and close at exactly the right time for optimal combustion. Over time, these components can wear or deteriorate, especially under high performance or extended use, making replacement vital during an engine rebuild or major service.
At Design911, we supply a full range of genuine and high-quality belts, tensioners, and rollers for various Porsche models including, 911, Boxster, Cayman, Cayenne, Macan, and Panamera models. Each component is designed for strength, accuracy, and long-lasting reliability — ensuring your rebuilt Porsche engine performs flawlessly mile after mile.
What Do Engine Belts, Tensioners & Rollers Do?
These components form the heart of the engine’s timing and
auxiliary systems. They:
- Drive
key engine components, including the camshaft, alternator, and water
pump.
- Maintain
accurate timing for optimal combustion and efficiency.
- Reduce
friction and noise through smooth roller and tensioner operation.
- Ensure consistent belt tension to prevent slippage or premature wear.
Together, they guarantee your Porsche’s engine runs smoothly, efficiently, and reliably — whether cruising or driving at peak performance.
Why Do Belts, Tensioners & Rollers Fail?
Exposure to high temperatures, vibration, and constant
motion causes natural wear over time. Common causes of failure include:
- Aging
rubber belts becoming brittle or cracked.
- Worn
bearings in rollers or tensioners leading to noise or vibration.
- Loss
of tension causing belt slippage or timing misalignment.
- Contamination
from oil or coolant degrading materials.
- Extended maintenance intervals leading to unexpected failure.
Symptoms of failing components include squealing noises, poor engine performance, rough idle, or even timing belt failure, which can cause severe engine damage if ignored.
Why Replace Belts, Tensioners & Rollers During an Engine Rebuild?
Replacing these components during an engine rebuild ensures long-term reliability and eliminates the risk of future timing-related failures. A fresh set of belts, rollers, and tensioners restores precision, efficiency, and performance — protecting your investment.
Benefits of replacement include:
- Restored precise timing and smooth operation.
- Reduced risk of catastrophic engine failure.
- Enhanced reliability and longevity of the rebuild.
- Quieter, more efficient engine performance.
All components available from Design911 are made using premium-grade materials, precision bearings, and advanced heat-resistant compounds, ensuring maximum durability and performance in high-stress Porsche engines.