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- 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)
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Related, superseded, cross reference or alternative numbers for comparison.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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
703141410
The product you are viewing cross references to these numbers
Typical Applications
Hylomar Gasket 3400 can be used as a gasketing compound between machined surfaces. It is ideal for sealing between mating faces on engines and transmission components where resistance to temperature and vibration are essential.
INSTRUCTIONS FOR USE
Hylomar Gasket 3400 should be applied to clean and dry surfaces, free of contamination such as oil or grease. The compound may be dispensed by hand from cartridge, concertina pack, or via a screen printing system. Once applied the joint should be assembled as soon as practical. Any excess compound can be easily wiped off external surfaces with a clean cloth soaked in Acetone or other suitable solvents.
Typical Physical Properties:
UNCURED PRODUCT
Composition: Methyl-Methacrylate
Colour: Yellow
Viscosity @ 25°C / Brookfield Spindle 6 @ 2.5rpm: 100,000cps
Specific Gravity @ 25°C: 1.10 g/ml
Solvent Content: None
Specific Gravity g/ml @ 25°C: 1.04
Flash Point: >100°C
Shelf Life: 1 Year @ 4° to 25°C
CURED PRODUCT
Handling Time: 40 minutes
Functional Cure Time: 4 – 6 hours
Full Cure Time : 24 – 72 hours
Shear Strength : 1.5 N/mm²
Mild Steel/Mild Steel BS 5350 Part C5
Aluminium/Aluminium BS 5350 Part C5
Temperature Range: -40° to 150°C