for early Porsche air-cooled flat-six engines, including the 911 and 930 Turbo. This OE Match replacement is built to original Porsche specifications, matching the factory dimensions, thickness, and sealing quality for a perfect fit. Positioned between the crankcase and cylinder base, it provides a reliable seal to prevent oil and combustion leaks, ensuring lasting engine integrity and performance.
Fits:
Porsche 911 3.0ltr - 1976 to 1977
Porsche 911 3.0ltr / 3.2ltr - 1978 to 1989
Porsche 911 turbo 3.0ltr - 1975 to 1977
Diagram Ref No 5.
Position on Car: Between engine block (crankcase) and cylinder base in air-cooled engine.
Over time the cylinder‐base gasket can degrade due to thermal cycling, vibration and age, leading to oil seepage, reduction in compression sealing or potential engine case contamination. Replacing it with a high-quality replacement gasket ensures the joint is properly sealed, avoids loss of performance and prevents possible engine damage.
Replace when:
• You are performing an engine rebuild or cylinder removal.
• You detect oil seepage or visible signs of leakage from the cylinder base area.
• You observe compression loss, or gasket part numbers are referenced in service documentation for your engine variant.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93010419401
The product you are viewing cross references to these numbers
- 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)


