Please wait… 
Please wait while we process your order,
do not press the back button… 
Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design911.co.uk/images/schemaLogo.png https://www.design911.co.uk/images/schemaLogo.png +443456003478 https://www.design911.co.uk Facebook Instagram
Porsche specialists based in the UK
Porsche > Cayman 718C (982C) 2017>> > Cayman S 718 2.5L Manual (350 Bhp) > Engine Rebuild Parts > Engine Valves / Guides / Springs >

Engine cylinder head inlet valve. Porsche Boxster 986 2.5L / Boxster 986 2.7L  ❭  99610511105

Engine cylinder head inlet valve. Porsche Boxster 986 2.5L / Boxster 986 2.7L - 99610511102, 99610511105, 3657.032, 854437-6 - ER.047.034
2
Check vehicle fitment
99610511105/2
Product Information
Product Information
Engine Cylinder Head Inlet Valve.
The OE Match Engine Cylinder Head Inlet Valve is a high-quality replacement valvetrain component designed to regulate the flow of air and fuel into the engine's combustion chamber. Manufactured to OE specifications for fit, precision and durability, this inlet valve is essential for maintaining efficient engine breathing, combustion performance and long-term engine reliability.  
Sold Each.
X12 Required Per Car.

Fits:
  • Porsche Boxster 986 2.5L 1997-99
  • Porsche Boxster 986 2.7L 1999-02
  • Porsche Boxster 986 2.7L 2003-04
  • Porsche Boxster 987 2.7L 2005-08/08

Diagram Ref No 8  

Produced from premium-grade, heat-resistant materials, the inlet valve is engineered to withstand the constant mechanical loads and high operating temperatures associated with modern engine operation. Working in conjunction with the camshaft, valve springs, valve guides and cylinder head assembly, it ensures precise control of intake airflow, helping the engine deliver optimal power, fuel efficiency and responsiveness.  

What This Product Does:
  • Controls the intake of air and fuel into the combustion chamber.
  • Opens and closes in precise timing with engine operation.
  • Maintains an effective seal during compression and combustion cycles.
  • Supports efficient airflow and engine breathing.
  • Helps maximise engine performance and throttle response.
  • Contributes to fuel efficiency and emissions control.
  • Forms a critical part of the engine valvetrain system.

Symptoms Of Wear Or Failure:
  • Loss of engine power and performance.
  • Rough idle or uneven engine running.
  • Engine misfires.
  • Poor throttle response and acceleration.
  • 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 are subjected to continuous opening and closing cycles while being exposed to heat, combustion by-products and airflow turbulence. Over time, valves can become worn, bent, burnt, carbon-contaminated or develop sealing issues that negatively affect 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 contribute to compression loss and may cause additional wear 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.

99610511105
99610511102
99610511105
3657.032
854437-6

The product you are viewing cross references to these numbers
Related products
Oil stem seal. Porsche 986 Boxster / 987 Boxster / 996 / 997 - 99610511552, 95510567500, 1111352900
2
Oil stem seal. Porsche 986 Boxster / 987 Boxster / 996 / 997
Special Order item
95510567500
Product Information
Product Information
Oil stem seal. 24 per engine. Price is for each.

porsche

Fits:
Porsche 986 Boxster(24 per car)
Porsche 987.1 Boxster(24 per car)
Porsche 987.2 Boxster(24 per car)
Porsche 981 Boxster (24 per car)
Porsche 982 Boxster 2.0L / 2.5L (16 per car)

Porsche 987C.1 Cayman(24 per car)
Porsche 987C.2 Cayman(24 per car)
Porsche 981C Cayman (24 per car)
Porsche 982C Cayman 2.0L / 2.5L (16 per car)

Porsche 996 1998-05
Porsche 997.1 2005-08
Porsche 997.2 2009-12
Porsche 991.1 2012-16 (24 per car)
Porsche 991.2 2017-19 (24 per car)
Porsche 992.1 2019>> (24 per car)

Porsche Cayenne 955 2003-06 3.2L V6 (24 per car)
Porsche Cayenne 955 2003-06 4.5L V8 (32 per car)
Porsche Cayenne 957 2007-10 3.6L V6 (24 per car)
Porsche Cayenne 957 2007-10 4.8L V8 (32 per car)
Porsche Cayenne 92A 2011-18 3.6L V6 (24 per car)
Porsche Cayenne 92A Turbo / Turbo S 2011-18 4.8L V8 (32 per car)
Porsche Cayenne 9YA 2018>> 2.9l / 3.0L V6 (12 per car)
Porsche Cayenne 92A Turbo / Turbo S 2011-18 4.8L V8 (32 per car)


Porsche Macan MKI 2.0L V4 (16 per car)
Porsche Macan MKI S 3.0L V6 (24 per car)
Porsche Macan MKI Turbo 3.6L V6 (24 per car)
Porsche Macan MKII 2.0L V4 (16 per car)
Porsche Macan MKII 2.9L / 3.0L V6 (12 per car)

Porsche Panamera 970 3.0L V6 Diesel (24 per car)
Porsche Panamera 970 3.6L V6 (24 per car)
Porsche Panamera 970 4.8L V8 (32 per car)
Porsche Panamera 971 2.9L / 3.0L V6 (12 per car)
Porsche Panamera 971 4.0L V8 Diesel (32 per car)

Porsche Carrera GT V10 (40 per car)


Click 'Zoom in' for large parts diagram.
Diagram ref no 10

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95510567500
99610511552
95510567500
1111352900

The product you are viewing cross references to these numbers
Oil stem seal. Porsche 986 Boxster / 987 Boxster / 996 / 997 - 99610511552, 95510567500, 1111352900, 403.730, 107 502
3
Oil stem seal. Porsche 986 Boxster / 987 Boxster / 996 / 997
95510567500/1
Product Information
Product Information
Oil stem seal. Price is for each.

oematch

Fits:
Porsche 986 Boxster(24 per car)
Porsche 987.1 Boxster(24 per car)
Porsche 987.2 Boxster(24 per car)
Porsche 981 Boxster (24 per car)
Porsche 982 Boxster 2.0L / 2.5L (16 per car)

Porsche 987C.1 Cayman(24 per car)
Porsche 987C.2 Cayman(24 per car)
Porsche 981C Cayman (24 per car)
Porsche 982C Cayman 2.0L / 2.5L (16 per car)

Porsche 996 1998-05
Porsche 997.1 2005-08
Porsche 997.2 2009-12
Porsche 991.1 2012-16 (24 per car)
Porsche 991.2 2017-19 (24 per car)
Porsche 992.1 2019>> (24 per car)

Porsche Cayenne 955 2003-06 3.2L V6 (24 per car)
Porsche Cayenne 955 2003-06 4.5L V8 (32 per car)
Porsche Cayenne 957 2007-10 3.6L V6 (24 per car)
Porsche Cayenne 957 2007-10 4.8L V8 (32 per car)
Porsche Cayenne 92A 2011-18 3.6L V6 (24 per car)
Porsche Cayenne 92A Turbo / Turbo S 2011-18 4.8L V8 (32 per car)
Porsche Cayenne 9YA 2018>> 2.9l / 3.0L V6 (12 per car)
Porsche Cayenne 9YA Turbo / Turbo S 2011-18 4.8L V8 (32 per car)


Porsche Macan MKI 2.0L V4 (16 per car)
Porsche Macan MKI S 3.0L V6 (24 per car)
Porsche Macan MKI Turbo 3.6L V6 (24 per car)
Porsche Macan MKII 2.0L V4 (16 per car)
Porsche Macan MKII 2.9L / 3.0L V6 (12 per car)

Porsche Panamera 970 3.0L V6 Diesel (24 per car)
Porsche Panamera 970 3.6L V6 (24 per car)
Porsche Panamera 970 4.8L V8 (32 per car)
Porsche Panamera 971 2.9L / 3.0L V6 (12 per car)
Porsche Panamera 971 4.0L V8 Diesel (32 per car)

Porsche Carrera GT V10 (40 per car)


Click 'Zoom in' for large parts diagram.
Diagram ref no 10

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95510567500
99610511552
95510567500
1111352900
403.730
107 502

The product you are viewing cross references to these numbers