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Engine cylinder head exhaust valve. Porsche 911 1978-89 - 93010541951
93010541951/1
Vehicle Group
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Information
Engine cylinder head exhaust valve. Diameter - 41.5mm
Sold each.
High-quality replacement valve designed for classic Porsche 911 engines produced between 1978 and 1989.
Fits:
The exhaust valve is located in the cylinder head as part of the engine’s valve train. With every combustion cycle, it opens to release exhaust gases and closes again to preserve compression. Built to endure extreme heat, pressure, and constant motion, it plays a vital role in maintaining engine performance, efficiency, and emissions control.
Over time, exhaust valves can wear or deform due to heat, carbon deposits, or mechanical stress. When they no longer seal properly, exhaust pressure can leak past the valve seat, reducing compression, power, and efficiency. In severe cases, a failing exhaust valve can lead to misfires, rough running, or damage to the cylinder head.
You should consider replacing the exhaust valve if any of the following occur:
• Loss of engine power, especially at higher RPMs
• Rough idle or misfires
• Exhaust smoke or unusual noise from the cylinder head
• Compression test reveals a weak cylinder
• When rebuilding or overhauling the engine or cylinder head
• After excessive heat exposure or in engines with high mileage
Replacing the valve ensures precise fit, proper sealing, and long-term durability — critical for restoring engine performance and preventing further damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010541951
The product you are viewing cross references to these numbers
Sold each.
High-quality replacement valve designed for classic Porsche 911 engines produced between 1978 and 1989.
Fits:
Porsche Carrera 3.0ltr - 1976 to 1977
Porsche 911 SC 3.0ltr - 1978 to 1983
Porsche 911 3.2 Carrera 1984 to 1989
The exhaust valve is located in the cylinder head as part of the engine’s valve train. With every combustion cycle, it opens to release exhaust gases and closes again to preserve compression. Built to endure extreme heat, pressure, and constant motion, it plays a vital role in maintaining engine performance, efficiency, and emissions control.
Over time, exhaust valves can wear or deform due to heat, carbon deposits, or mechanical stress. When they no longer seal properly, exhaust pressure can leak past the valve seat, reducing compression, power, and efficiency. In severe cases, a failing exhaust valve can lead to misfires, rough running, or damage to the cylinder head.
You should consider replacing the exhaust valve if any of the following occur:
• Loss of engine power, especially at higher RPMs
• Rough idle or misfires
• Exhaust smoke or unusual noise from the cylinder head
• Compression test reveals a weak cylinder
• When rebuilding or overhauling the engine or cylinder head
• After excessive heat exposure or in engines with high mileage
Replacing the valve ensures precise fit, proper sealing, and long-term durability — critical for restoring engine performance and preventing further damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010541951
93010541908
93010541915
93010541951
93010541902
93010541918
The product you are viewing cross references to these numbers
Price: €44.46
In stock
Related products
Vehicle Group
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 928S 4.7L 1981-83
Information
Engine cylinder head exhaust valve.
Fits:
Porsche 924S 2.5L V8 1986-88
Porsche 944 2.5L V8
Porsche 928S 4.7L 1980-82
924, 2.5 S M 44.08/M 44.07
924, 2.5 S M 44.08/M 44.07
924, 2.5 S M 44.08/M 44.07
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
Click 'Zoom in' for large parts diagram.
Diagram Ref No 10.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810541004
The product you are viewing cross references to these numbers
Fits:
Porsche 924S 2.5L V8 1986-88
Porsche 944 2.5L V8
Porsche 928S 4.7L 1980-82
924, 2.5 S M 44.08/M 44.07
924, 2.5 S M 44.08/M 44.07
924, 2.5 S M 44.08/M 44.07
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
Click 'Zoom in' for large parts diagram.
Diagram Ref No 10.
Related reference numbers
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92810541004
9281054100
92810541002
92810541004
1869.209
864406-4
The product you are viewing cross references to these numbers
Price: €33.93
In stock
Vehicle Group
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Information
Engine cylinder head inlet valve.
Fits
Porsche 924S 1986-88 2.5cc
Porsche 944 1982-88 2.5cc
Porsche 928 S, S2 1980-86
924, 2.5 S M 44.03/M 44.01
924, 2.5 S M 44.08/M 44.07
924, 2.5 S M 44.08/M 44.07
924, 2.5 S M 44.08/M 44.07
924, 2.5 S M 44.09/M 44.10
924, 2.5 S M 44.09/M 44.10
924, 2.5 S M 44.09/M 44.10
928, 4.7 S M 28.11/M 28.12
928, 4.7 S M 28.11/M 28.12
928, 4.7 S M 28.11/M 28.12
928, 4.7 S M 28.22/M 28.21
928, 4.7 S M 28.22/M 28.21
928, 4.7 S M 28.22/M 28.21
944, 2.5 M 44.03/M 44.05/M 44.01/M 44.06
944, 2.5 M 44.05/M 44.09/M 44.10
944, 2.5 M 44.05/M 44.09/M 44.10
944, 2.5 M 44.05/M 44.09/M 44.10
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
Click 'Zoom in' for large parts diagram.
Diagram Ref No 9.
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92810540902
The product you are viewing cross references to these numbers
Fits
Porsche 924S 1986-88 2.5cc
Porsche 944 1982-88 2.5cc
Porsche 928 S, S2 1980-86
924, 2.5 S M 44.03/M 44.01
924, 2.5 S M 44.08/M 44.07
924, 2.5 S M 44.08/M 44.07
924, 2.5 S M 44.08/M 44.07
924, 2.5 S M 44.09/M 44.10
924, 2.5 S M 44.09/M 44.10
924, 2.5 S M 44.09/M 44.10
928, 4.7 S M 28.11/M 28.12
928, 4.7 S M 28.11/M 28.12
928, 4.7 S M 28.11/M 28.12
928, 4.7 S M 28.22/M 28.21
928, 4.7 S M 28.22/M 28.21
928, 4.7 S M 28.22/M 28.21
944, 2.5 M 44.03/M 44.05/M 44.01/M 44.06
944, 2.5 M 44.05/M 44.09/M 44.10
944, 2.5 M 44.05/M 44.09/M 44.10
944, 2.5 M 44.05/M 44.09/M 44.10
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
944, 2.5 M 44.08/M 44.02/M 44.07/M 44.04
Click 'Zoom in' for large parts diagram.
Diagram Ref No 9.
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92810540902
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1868.002
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Price: €28.08
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 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
Information
Valve stem seals. Porsche 911/ 924/944/964
EACH
Fits:
Porsche 911 1968-89 (12 Per Engine)
Porsche 924S (8 Per Engine)
Porsche 944 (8 Per Engine)
Porsche 944 2.7L (8 Per Engine)
Porsche 964 3.6L (12 Per Engine)
Porsche 964 Turbo (12 Per Engine)
Porsche 928 (16 Per Engine)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 19.
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96410411107
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EACH
Fits:
Porsche 911 1968-89 (12 Per Engine)
Porsche 924S (8 Per Engine)
Porsche 944 (8 Per Engine)
Porsche 944 2.7L (8 Per Engine)
Porsche 964 3.6L (12 Per Engine)
Porsche 964 Turbo (12 Per Engine)
Porsche 928 (16 Per Engine)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 19.
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96410411107
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596.981
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