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Cylinder head exhaust valve. Porsche 911 S/TU/T/E - 90110540850
90110540850/1
Vehicle Group
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 914 (1970-1976)
Information
Cylinder head exhaust valve.
The exhaust valve opens and closes in time with the camshaft to release burnt gases after combustion. A correctly sealing valve helps maintain compression, stable idle, clean running, and consistent performance.
Sold each, 6 required per vehicle.
Fits:
Porsche 911 S/TU/T/E 1965 - 1969
Porsche 914-6 1970 - 1976
Diagram ref no 10
This valve forms a gas-tight seal against the valve seat to contain combustion pressure, then opens to allow exhaust flow out of the cylinder. Because exhaust valves operate under high heat, correct material quality and precise machining are critical for longevity and reliable sealing
A worn, pitted, or burnt exhaust valve can cause compression loss, misfires, poor performance, and potentially lead to costly cylinder head damage if ignored. Replacing valves during a rebuild helps restore correct sealing and reliable operation under heat load.
When to replace:
• Low compression / leak-down points to valve sealing issues
• Burnt valve symptoms (misfire, rough idle, power loss)
• Visible pitting, tuliping, or seat damage during teardown
• Excessive valve stem wear found during head inspection
• During cylinder head overhaul or full engine rebuild
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110540850
The product you are viewing cross references to these numbers
The exhaust valve opens and closes in time with the camshaft to release burnt gases after combustion. A correctly sealing valve helps maintain compression, stable idle, clean running, and consistent performance.
Sold each, 6 required per vehicle.
Fits:
Porsche 911 S/TU/T/E 1965 - 1969
Porsche 914-6 1970 - 1976
Diagram ref no 10
This valve forms a gas-tight seal against the valve seat to contain combustion pressure, then opens to allow exhaust flow out of the cylinder. Because exhaust valves operate under high heat, correct material quality and precise machining are critical for longevity and reliable sealing
A worn, pitted, or burnt exhaust valve can cause compression loss, misfires, poor performance, and potentially lead to costly cylinder head damage if ignored. Replacing valves during a rebuild helps restore correct sealing and reliable operation under heat load.
When to replace:
• Low compression / leak-down points to valve sealing issues
• Burnt valve symptoms (misfire, rough idle, power loss)
• Visible pitting, tuliping, or seat damage during teardown
• Excessive valve stem wear found during head inspection
• During cylinder head overhaul or full engine rebuild
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110540850
90110540850
The product you are viewing cross references to these numbers
Price: £33.00
In stock
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Information
Oil stem seal. Price is for each.
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Porsche 987C.2 Cayman(24 per car)
Porsche 981C Cayman (24 per car)
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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
The product you are viewing cross references to these numbers
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Porsche 997.1 2005-08
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Porsche 991.2 2017-19 (24 per car)
Porsche 992.1 2019>> (24 per car)
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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)
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Porsche Macan MKII 2.0L V4 (16 per car)
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Porsche Panamera 970 3.6L V6 (24 per car)
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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
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95510567500
99610511552
95510567500
1111352900
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107 502
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Price: £3.00
In stock
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)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 992.1 Turbo S 3.8L 2020-24
- Porsche 992.1 Turbo Cabriolet 3.8L 2020-24
- Porsche 992.1 Turbo S Cabriolet 3.8L 2020-24
Information
Rennline valve lash tool.
Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994
Product Description
Valve lash adjustments on the air-cooled 911 engine can be a frustrating and time consuming experience, even for the seasoned Porsche mechanic.
Working in close, cramped quarters can make valve adjustments an unpleasant procedure.
Finally, there is a simpler, faster and more exacting way to adjust valve lash on all air-cooled Porsche 911 engines! From the professional mechanic to the owner/enthusiast, this easy-to-use device is made to last for many years and will prove to be a valuable addition to your 911 toolbox.
• Repeatable 0.1 mm (.004 in) lash clearance settings on every valve
• Saves time and provides more accurate over traditional feeler gauge methods
• Aluminum and steel construction
• Zinc plated finish provides corrosion protection
• Laser engraved markings
• Durable box with foam insert for safe storage
Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994
Product Description
Valve lash adjustments on the air-cooled 911 engine can be a frustrating and time consuming experience, even for the seasoned Porsche mechanic.
Working in close, cramped quarters can make valve adjustments an unpleasant procedure.
Finally, there is a simpler, faster and more exacting way to adjust valve lash on all air-cooled Porsche 911 engines! From the professional mechanic to the owner/enthusiast, this easy-to-use device is made to last for many years and will prove to be a valuable addition to your 911 toolbox.
• Repeatable 0.1 mm (.004 in) lash clearance settings on every valve
• Saves time and provides more accurate over traditional feeler gauge methods
• Aluminum and steel construction
• Zinc plated finish provides corrosion protection
• Laser engraved markings
• Durable box with foam insert for safe storage
Price: £113.00
Orderable