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- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
OE Match Exhaust Valve Guide is a precision-engineered valve guide designed to replace the original exhaust valve guide in the Porsche 911 (993) engine. This is a 1st oversize guide - meaning it is slightly larger than standard to accommodate engines that have been reamed or experienced wear over time.
Price is for each, 6 required per engine.
Fits:
Porsche 993 1994 - 1998
Diagram Ref no 2.
This exhaust valve guide keeps the exhaust valve stem perfectly aligned in the cylinder head, helping to ensure the valve seals correctly against the seat, maintains good compression, and promotes efficient evacuation of exhaust gases. A proper valve guide also helps conduct heat away from the valve stem into the head where it can be cooled by the engine’s coolant system.
Function:
• Valve Alignment: Ensures the exhaust valve travels straight and seats accurately each cycle.
• Wear Control: Reduces valve stem wobble and limits side loading that can damage seats or stems.
• Heat Conduction: Helps transfer combustion heat away from the valve stem and into the head casting.
• Rebuild Support: Oversize version is ideal for heads that have been reamed during rebuilds to restore correct fitment.
Fitment
• Installed in the exhaust sides of the cylinder head valve train
• Typically 6 guides per engine are needed for a full head rebuild.
• This part matches Porsche’s oversize guide specification and is used when the standard guide bores have been worked to remove wear or damage.
Valve guides wear over time due to heat, friction, and repeated valve movement. When guides become worn or oversized gaps develop between the valve stem and guide bore, the following issues can arise:
• Loss of performance and power
• Higher oil consumption
• Reduced sealing and compression
• Increased valve train wear
Installing a correct OE Match valve guide restores correct valve alignment, reduces unwanted movement, supports proper seat sealing, and prolongs the life of your engine’s top end - especially in rebuild or high-mileage applications.
Replace valve guides if you observe:
• Blue smoke from the exhaust (signifying oil burning)
• Rough idle or hesitation
• Poor compression or loss of engine power
• Valve stem play when checked during teardown
• During a cylinder head rebuild or valve job
Related reference numbers
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99310432172
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
Set of 12
Fits:
Porsche 958 Cayenne S Hybrid 3.0ltr - 2010 to 2017
Porsche 970.1 Panamera Hybrid 3.0ltr - 2009 to 2013
Porsche 970.2 Panamera E-Hybrid 3.0ltr - 2009 to 2013
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
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95810532220
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
Set of 12
Fits:
Porsche 958 Cayenne S Hybrid 3.0ltr - 2010 to 2017
Porsche 970.1 Panamera Hybrid 3.0ltr - 2009 to 2013
Porsche 970.2 Panamera E-Hybrid 3.0ltr - 2009 to 2013
Click 'Zoom in' for large parts diagram.
Diagram ref no 6
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95810532100
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-17
- Porsche 9YA Cayenne GTS V8 4.0L Petrol (460Hp) 2020-23
- Porsche 9YA Cayenne Coupe GTS V8 4.0L Petrol (460Hp) 2021-23
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
- Porsche 9YA Cayenne Turbo S E-Hybrid V8 4.0L (550Hp) 2019-23
- Porsche 9YA Cayenne Coupe Turbo S E-Hybrid V8 4.0L (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo GT V8 4.0L (640Hp) 2021-23
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD (550 Hp) 2017-20
- Porsche 971.1 Panamera Turbo V8 4.0L 4WD Executive 2017-20
- Porsche 971.1 Panamera Turbo 4.0L Twin-Turbo V8 Sport Turismo 2017-20
- Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD 2017-20
- Porsche 971.1 Panamera Turbo S E-Hybrid V8 4.0L 4WD Executive 2017-20
- Porsche 971.2 Panamera GTS 4.0L V8 2021-23
- Porsche 971.2 Panamera GTS Sport Turismo 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S Sport Turismo 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S E-Hybrid 4.0L V8 2021-23
- Porsche 971.2 Panamera Turbo S E-Hybrid Sport Turismo 4.0L V8 2021-23
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
Sold each
Fits:
Porsche 957 Cayenne Diesel - 2007 to 2010 (inlet and exhaust 24 required)
Porsche 958 Cayenne Diesel 3.0ltr - 2010 to 2017 (inlet and exhaust 24 required)
Porsche 958 Cayenne S Hybrid 3.0ltr - 2010 to 2017 (inlet 12 required)
Porsche 958 Cayenne S Diesel 4.2ltr - 2017 to 2018 (inlet and exhaust 32 required)
Porsche 9YA Cayenne turbo / GTS V8 4.0ltr 2018 to 2023 (inlet 16 required)
Porsche 970.2 Panamera S E-Hybrid - 2014 to 2016 (inlet 12 required)
Porsche 970.2 Panamera Diesel - 2014 to 2016 (inlet 12 required)
Porsche 971.1 Panamera turbo 4.0ltr - 2017 to 2020 (inlet 16 required)
Porsche 971.1 Panamera turbo S E-Hybrid 4.0ltr - 2017 to 2020 (inlet 16 required)
Porsche 971.2 Panamera V8 4.0ltr - 2021 to 2023 (inlet 16 required)
Porsche 95B Macan Diesel - 2014 to 2018 (inlet 12 required)
Diagram ref no 12
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95510511510
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