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Cylinder head inlet valve. Porsche 911L upto 1968 - 90110540104
90110540104/1
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 914 (1970-1976)
Information
Cylinder head inlet valve. Porsche 911L upto 1968
Fits:
Porsche 911 L >>1968
Click 'Zoom in' for Large parts diagram.
Diagram ref no 9
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110540104
The product you are viewing cross references to these numbers
Fits:
Porsche 911 L >>1968
Click 'Zoom in' for Large parts diagram.
Diagram ref no 9
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90110540104
90110540104
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Price: €103.20
Orderable
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Related, superseded, cross reference or alternative numbers for comparison.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
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99610511155
99610511152
99610511155
3843.032
854415-6
The product you are viewing cross references to these numbers
Price: €39.60
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.
Fits:
Porsche 996 3.4L C2, C4 1997-01
Porsche 986 Boxster 3.2L
Porsche 987 Boxster 3.2L
Click 'Zoom in' for large parts diagram.
Diagram Ref No 9.
Related reference numbers
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99610524700
The product you are viewing cross references to these numbers
Fits:
Porsche 996 3.4L C2, C4 1997-01
Porsche 986 Boxster 3.2L
Porsche 987 Boxster 3.2L
Click 'Zoom in' for large parts diagram.
Diagram Ref No 9.
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99610524700
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99610524700
996.105.247.00
3891.239
864439-6
22909
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Price: €40.20
In stock
Vehicle Group
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII GT2 RS 2011-13
Information
Engine cylinder head inlet valve. Porsche 996 Turbo / 997 Turbo
Fits:
Porsche 996 Turbo/GT2 2001-05
Porsche 997.1 Turbo / GT2 3.6L 2007-09
Porsche 997.2 GT2 RS 3.6L 2011
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
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99610511172
The product you are viewing cross references to these numbers
Fits:
Porsche 996 Turbo/GT2 2001-05
Porsche 997.1 Turbo / GT2 3.6L 2007-09
Porsche 997.2 GT2 RS 3.6L 2011
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
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99610511172
99610511172
The product you are viewing cross references to these numbers
Price: €54.00
In stock