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Inlet / exhaust valve guide 1st Oversize, SET OF 12. Porsche 911 1965-89 - 93010432150
93010432150/2KIT
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Information
SET OF 12 valve guides - 1st Oversize - Inlet x6 and exhaust x6.
This set of 12 consists of twelve valve guides 93010432150 (first oversize) allowing you to replace the guides in all cylinders of your Porsche engine in one comprehensive package. Ideal for a full cylinder head rebuild, this matched set ensures uniform fitment across all cylinders and simplifies parts procurement.
Fits:
Porsche 911 1965 - 1989
Outer diameter: 13,26 mm,
Bore Ø: 9,00 mm,
Length: 51,20 mm,
Fitting Position: Intake Side
Diagram Ref No 2.
• Position on Vehicle: All valve positions across the engine’s cylinder heads where intake/exhaust guides are located.
• Applications: Recommended when undertaking a full head rebuild, especially after seat machining, guide bore wear or when aiming for consistent component age across all cylinders.
Replacing all valve guides together ensures even wear characteristics, consistent valve movement and avoids mixing new guides with old worn ones which may compromise engine balance or longevity.
When to replace full set:
• Full cylinder head rebuild including seat work, milling or guide bore enlargement.
• Engine showing symptoms of widespread valve guide wear (smoke, oil consumption, play) across multiple cylinders.
• When aiming for maximum long-term reliability and standardised new parts across the engine.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010432150
The product you are viewing cross references to these numbers
This set of 12 consists of twelve valve guides 93010432150 (first oversize) allowing you to replace the guides in all cylinders of your Porsche engine in one comprehensive package. Ideal for a full cylinder head rebuild, this matched set ensures uniform fitment across all cylinders and simplifies parts procurement.
Fits:
Porsche 911 1965 - 1989
Outer diameter: 13,26 mm,
Bore Ø: 9,00 mm,
Length: 51,20 mm,
Fitting Position: Intake Side
Diagram Ref No 2.
• Position on Vehicle: All valve positions across the engine’s cylinder heads where intake/exhaust guides are located.
• Applications: Recommended when undertaking a full head rebuild, especially after seat machining, guide bore wear or when aiming for consistent component age across all cylinders.
Replacing all valve guides together ensures even wear characteristics, consistent valve movement and avoids mixing new guides with old worn ones which may compromise engine balance or longevity.
When to replace full set:
• Full cylinder head rebuild including seat work, milling or guide bore enlargement.
• Engine showing symptoms of widespread valve guide wear (smoke, oil consumption, play) across multiple cylinders.
• When aiming for maximum long-term reliability and standardised new parts across the engine.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010432150
93010432150
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
12 x Inlet / exhaust valve guide 1st Oversize. Porsche 911 1965-89 (93010432150/2)
Unit Price: £15.00
InStock
Price: £180.00
In stock
Related products
Vehicle Group
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Information
Engine Cylinder Head Inlet Valve.
The OE Match Engine Cylinder Head Inlet Valve is a high-quality replacement valvetrain component designed to control the flow of the air-fuel mixture into the engine's combustion chamber. Manufactured to OE specifications for fit, precision and durability, this inlet valve plays a crucial role in maintaining efficient engine breathing, combustion efficiency and overall engine performance.
Fits:
Diagram Ref No 8
Constructed from premium-grade, heat-resistant materials, the inlet valve is engineered to withstand constant operation, repeated opening and closing cycles, and the demanding conditions found within the cylinder head. Working alongside the camshaft, valve springs, valve guides and cylinder head assembly, it ensures precise airflow management and reliable combustion throughout the engine's operating range.
What This Product Does:
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610511155
The product you are viewing cross references to these numbers
The OE Match Engine Cylinder Head Inlet Valve is a high-quality replacement valvetrain component designed to control the flow of the air-fuel mixture into the engine's combustion chamber. Manufactured to OE specifications for fit, precision and durability, this inlet valve plays a crucial role in maintaining efficient engine breathing, combustion efficiency and overall engine performance.
Fits:
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
Diagram Ref No 8
Constructed from premium-grade, heat-resistant materials, the inlet valve is engineered to withstand constant operation, repeated opening and closing cycles, and the demanding conditions found within the cylinder head. Working alongside the camshaft, valve springs, valve guides and cylinder head assembly, it ensures precise airflow management and reliable combustion throughout the engine's operating range.
What This Product Does:
- Regulates the intake of air and fuel into the combustion chamber.
- Opens and closes in precise synchronisation with the engine cycle.
- Maintains an effective seal during compression and combustion.
- Supports efficient airflow and cylinder filling.
- Helps maximise engine power and throttle response.
- Contributes to fuel economy and emissions control.
- Forms an essential part of the engine valvetrain system.
Symptoms Of Wear Or Failure:
- Reduced engine power and acceleration.
- Rough idle or uneven engine operation.
- Engine misfires.
- Poor throttle response.
- Increased fuel consumption.
- Low compression in the affected cylinder.
- Difficulty starting the engine.
- Ticking or tapping noises from the cylinder head.
- Engine management warning lights or fault codes.
- Failed compression or leak-down test results.
Why Replacement Matters:
- Inlet valves operate continuously under demanding conditions, experiencing thousands of opening and closing cycles every minute while being exposed to heat, combustion deposits and airflow turbulence. Over time, valves can become worn, bent, burnt, carbon-contaminated or develop sealing issues that reduce engine efficiency and performance.
- A damaged inlet valve can restrict airflow into the combustion chamber, resulting in poor combustion, reduced power output and increased fuel consumption. If left unresolved, valve-related problems can lead to compression loss and may cause additional damage to valve seats, cylinder heads and other internal engine components.
- Replacing a worn or damaged inlet valve restores proper airflow, improves combustion efficiency and helps maintain optimal engine performance. An OE Match replacement provides factory-style fitment, precision manufacturing and long-term durability, ensuring reliable operation and helping protect your Porsche engine from premature wear and costly repairs.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610511155
99610511152
99610511155
3843.032
854415-6
The product you are viewing cross references to these numbers
Price: £33.00
In stock
Vehicle Group
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- 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
Information
Engine Cylinder Head Exhaust Valve.
Diagram Ref No 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610524700
The product you are viewing cross references to these numbers
The OE Match Engine Cylinder Head Exhaust Valve is a precision replacement valvetrain component designed to control the release of burnt combustion gases from the engine cylinder.
Fits:
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- 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
Diagram Ref No 9
Located within the cylinder head, the exhaust valve opens at the correct point in the engine cycle to allow combustion gases to leave the cylinder and enter the exhaust system. It then closes firmly against the valve seat to seal the combustion chamber during the compression and power strokes.
Because exhaust valves are directly exposed to extremely hot combustion gases, they operate under demanding thermal and mechanical conditions. Correct valve condition and seating are therefore essential for maintaining cylinder compression, efficient combustion and reliable engine performance.
This OE Match replacement provides an OE-style solution for engine repair, cylinder-head refurbishment or complete engine rebuilding.
What This Product Does:
- Controls the flow of exhaust gases out of the combustion chamber.
- Opens to allow burnt gases to enter the exhaust system.
- Closes against the valve seat to seal the cylinder.
- Helps maintain correct cylinder compression.
- Supports efficient combustion and engine performance.
- Works with the camshaft, lifters, valve spring, valve guide and valve seat.
- Helps maintain consistent engine power and smooth running.
- Provides the correct sealing surface between the valve and cylinder head.
- Replaces a burnt, bent, worn or damaged original exhaust valve.
The valve face must form an accurate seal against the valve seat every time the valve closes. Even relatively minor damage to the valve face or stem can affect cylinder sealing and engine performance.
Symptoms Of Wear Or Failure:
A worn, burnt or damaged exhaust valve may cause:
- Engine misfires.
- Rough or unstable idle.
- Loss of engine power.
- Poor acceleration.
- Reduced compression in the affected cylinder.
- High cylinder leak-down readings.
- Air leakage heard through the exhaust during a leak-down test.
- Difficulty starting the engine.
- Increased fuel consumption.
- Engine management warning light.
- Misfire-related fault codes.
- Irregular exhaust note.
- Ticking or tapping noises from the cylinder head.
- Burnt, pitted or eroded valve face.
- Bent or excessively worn valve stem.
- Excessive carbon deposits.
- Visible overheating or discolouration of the valve.
A damaged exhaust valve can prevent the cylinder from sealing correctly, allowing compression and hot combustion gases to escape into the exhaust port.
Why Replacement Matters:
Exhaust valves operate in one of the hottest areas of the engine. Every combustion cycle exposes the valve head and seating surface to intense heat while the valve repeatedly opens and closes at high speed.
Over time, an exhaust valve can suffer from:
- Valve-face erosion.
- Pitting or burning.
- Carbon build-up.
- Stem wear.
- Mechanical distortion.
- Overheating.
- Poor seating caused by valve-guide or valve-seat wear.
Once the valve can no longer seal correctly, compression in the affected cylinder can fall. This can lead to misfires, reduced power, rough running and increased fuel consumption.
Replacing a damaged exhaust valve helps restore:
- Correct combustion-chamber sealing.
- Cylinder compression.
- Smooth engine operation.
- Reliable exhaust-gas control.
- Consistent engine performance.
- Correct valvetrain operation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610524700
99610511359
99610524700
996.105.247.00
3891.239
864439-6
22909
The product you are viewing cross references to these numbers
Price: £33.50
In stock
Vehicle Group
- 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
Information
Valve guide - Exhaust. Length 40.30 mm
OE Match exhaust valve guide 40.30mm for Porsche 996 and Boxster 986 models. This replacement valve guide helps support correct exhaust valve movement, valve seating, and reliable cylinder head operation during engine repair or rebuild.
Sold individually
Fits:
Porsche 996 Carrera 3.4L 1997 - 2001 (Engine code: 9601 / 9602 / 9604)
Porsche 996 Carrera 3.6L 2002 - 2005 (Engine code: 9603)
Porsche 986 Boxster 2.7L 2002 - 2004 (Engine code: 9623)
Porsche 986 Boxster 3.2L 2002 - 2004 (Engine code: 9624)
Material Copper
Inner diameter [mm] 6,00 mm
Outer diameter [mm] 11,05 mm
Length [mm] 40,30 mm
Diagram Ref No 4
The exhaust valve guide keeps the exhaust valve aligned as it opens and closes. A correctly fitted valve guide helps maintain valve seating, oil control, compression, and smooth engine operation.
Functions
• Replaces the exhaust valve guide
• Guides and supports the exhaust valve stem
• Helps maintain correct valve alignment and movement
• Supports reliable valve seating and sealing
• Helps reduce valve stem wear and excessive oil consumption
• Suitable for cylinder head overhaul or engine rebuild work
• OE Match replacement for Porsche 996 and Boxster 986 engine repair.
Why Replace This Part?
Valve guides can wear due to heat, mileage, friction, lubrication issues, and exhaust temperature. A worn exhaust valve guide can cause valve movement, poor sealing, smoke from oil consumption, reduced compression, valve noise, misfires, or poor engine performance. Replacement is recommended during cylinder head repair when guide wear is outside tolerance.
When to Replace This Part
• Cylinder head rebuild or engine overhaul is being carried out
• Exhaust valve guide wear is present
• Valve stem movement is excessive
• Oil consumption or exhaust smoke is being investigated
• Compression or valve sealing issues are present
• Exhaust valves are being replaced
• The engine is undergoing Porsche 996 or Boxster 986 restoration.
Where it fits on the car
This valve guide fits inside the engine cylinder head and supports the exhaust valve stem. It is used in the exhaust valve side of the valve train.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610414503
The product you are viewing cross references to these numbers
OE Match exhaust valve guide 40.30mm for Porsche 996 and Boxster 986 models. This replacement valve guide helps support correct exhaust valve movement, valve seating, and reliable cylinder head operation during engine repair or rebuild.
Sold individually
Fits:
Porsche 996 Carrera 3.4L 1997 - 2001 (Engine code: 9601 / 9602 / 9604)
Porsche 996 Carrera 3.6L 2002 - 2005 (Engine code: 9603)
Porsche 986 Boxster 2.7L 2002 - 2004 (Engine code: 9623)
Porsche 986 Boxster 3.2L 2002 - 2004 (Engine code: 9624)
Material Copper
Inner diameter [mm] 6,00 mm
Outer diameter [mm] 11,05 mm
Length [mm] 40,30 mm
Diagram Ref No 4
The exhaust valve guide keeps the exhaust valve aligned as it opens and closes. A correctly fitted valve guide helps maintain valve seating, oil control, compression, and smooth engine operation.
Functions
• Replaces the exhaust valve guide
• Guides and supports the exhaust valve stem
• Helps maintain correct valve alignment and movement
• Supports reliable valve seating and sealing
• Helps reduce valve stem wear and excessive oil consumption
• Suitable for cylinder head overhaul or engine rebuild work
• OE Match replacement for Porsche 996 and Boxster 986 engine repair.
Why Replace This Part?
Valve guides can wear due to heat, mileage, friction, lubrication issues, and exhaust temperature. A worn exhaust valve guide can cause valve movement, poor sealing, smoke from oil consumption, reduced compression, valve noise, misfires, or poor engine performance. Replacement is recommended during cylinder head repair when guide wear is outside tolerance.
When to Replace This Part
• Cylinder head rebuild or engine overhaul is being carried out
• Exhaust valve guide wear is present
• Valve stem movement is excessive
• Oil consumption or exhaust smoke is being investigated
• Compression or valve sealing issues are present
• Exhaust valves are being replaced
• The engine is undergoing Porsche 996 or Boxster 986 restoration.
Where it fits on the car
This valve guide fits inside the engine cylinder head and supports the exhaust valve stem. It is used in the exhaust valve side of the valve train.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610414503
99610411560
99610414501
99610414503
The product you are viewing cross references to these numbers
Price: £29.00
In stock
Vehicle Group
- 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
Information
Valve guide - Exhaust. Length 35.36mm
Fits:
Porsche 996 3.4L / 3.6L
Porsche 986 Boxster 2.7L , 3.2L
Material Copper
Inner diameter [mm] 6,00 mm
Outer diameter [mm] 11,05 mm
Length [mm] 35.36mm
Click 'Zoom in' for large parts diagram.
Diagram Ref No 12.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99610414503
The product you are viewing cross references to these numbers
Fits:
Porsche 996 3.4L / 3.6L
Porsche 986 Boxster 2.7L , 3.2L
Material Copper
Inner diameter [mm] 6,00 mm
Outer diameter [mm] 11,05 mm
Length [mm] 35.36mm
Click 'Zoom in' for large parts diagram.
Diagram Ref No 12.
Related reference numbers
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99610414503
99610411560
99610414501
99610414501
99610414503
99610411560INT
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Price: £26.50
In stock