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- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
In many modern engines, the valve cover also integrates parts of the PCV (Positive Crankcase Ventilation) system, including the PCV valve itself. This design helps manage crankcase pressure and ensures proper ventilation of engine gases for optimal performance.
Fits:
Porsche 993 (911) C2 1994-97
Porsche 993 (911) C4 1994-97
Porsche 993 (911) RS 1994-97
Porsche 993 (911) C2S 1994-97
Porsche 993 (911) C4S 1994-97
Common Engine Valve Cover Failure Symptoms
- · Aging and Wear: Over time, valve cover gaskets can harden, shrink, or crack, leading to oil leaks and burning oil smells coming from the engine.
- · Improper Installation: Uneven torque or incorrect gasket placement during installation can cause leaks and sealing issues.
- · Material Fatigue: Constant exposure to high engine temperatures can cause plastic or metal covers to warp or crack.
- · Blocked PCV Valve: A clogged PCV system can cause excess crankcase pressure, potentially damaging the valve cover or gasket.
Click picture for large parts diagram.
Diagram Ref No 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99310511607
The product you are viewing cross references to these numbers
- 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 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 914 (1970-1976)
Fits:
Porsche 911 1965-89
Porsche 964
Porsche 963
Diagram ref no 24
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90111127101
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
Lower camshaft cover set is a high-quality aluminium replacement for the original covers fitted to Porsche 911 (964) Carrera 2 and Carrera 4 models (1989–1993). These covers protect and seal the lower section of the camshaft housing, preventing oil leakage and maintaining proper lubrication around the valve train and camshaft bearings.
SET OF TWO
Fits:
Porsche 964 C2 / C4 1989 - 1993
Diagram Ref No 14
Manufactured from aluminium alloy, each cover in this set of two replicates Porsche’s original design, with exact bolt-hole alignment and machined sealing surfaces to ensure a perfect, leak-free fit. The durable construction provides excellent resistance to heat, vibration, and oil exposure — making it ideal for engine rebuilds, oil leak repairs, or performance restorations.
• Quantity: 2 pcs (left and right)
• Function: Seals and protects lower camshaft housing from oil leaks
• Position: Engine – lower camshaft housing (left & right banks)
• Benefits: OE-fit accuracy, improved durability, leak-free operation
Camshaft covers are exposed to constant heat cycles, oil pressure, and vibration. Over time, warping or gasket deterioration can lead to oil seepage or contamination around the camshaft housing.
Replace this set when:
• Performing a top-end rebuild or oil leak repair
• The existing covers show warping, cracks, or corrosion
• You observe oil weeping along the cam housing seam
• Restoring a Porsche 964 engine to factory specification
Installing a new Lower Camshaft Cover Set ensures precise sealing, improved engine cleanliness, and long-lasting durability — maintaining the reliability and presentation of your classic air-cooled Porsche engine.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410511603
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
SET OF 2, Left and right.
The aluminium cover seals and protects the camshaft and valvetrain, prevents oil leaks and contaminants, maintains proper oil flow, and ensures a tight gasket fit. This OE Match replacement is made to the same dimensions as the original Porsche part.
Fits:
Porsche 964 C2/C4 1990 - 1994
Porsche 964 Turbo 1993 - 1994
Diagram ref No 10
A damaged cover can cause oil leaks, gasket issues, or contamination of engine components. Replacing it restores proper sealing and alignment, helping keep the engine clean, reduce oil loss, and protect the valvetrain. This prevents costly damage and ensures long-term reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96410511503
The product you are viewing cross references to these numbers