
Product Descreiption
1. Basic Parameters
- Part Number: 3959798-6L
- Product Name: Valve Chamber Cover Gasket (also known as Valve Cover Gasket)
- Material: Typically high-temperature resistant rubber / silicone rubber / composite rubber (oil-resistant, heat-resistant, elastic)
- Type: Compression-type sealing gasket, integral one-piece structure
- Applicable Medium: Engine lubricating oil, crankcase blow-by gas
- Working Temperature Range: Approximately -40℃ ~ +150℃
- Core Characteristics: Oil resistance, heat resistance, aging resistance, good compression resilience, leak-proof performance
2. Installation Position
It is installed between the engine valve chamber (valve cover) and the cylinder head. It is clamped tightly by the valve cover and cylinder head bolts, fitting along the mating flange of the two components.
3. Main Functions
- Sealing Prevention: Seal the gap between the valve cover and cylinder head to stop engine oil leakage and prevent external dust, dirt and water from entering the valve chamber.
- Isolate Gas: Seal crankcase gas inside the valve chamber, avoid blow-by gas escaping into the engine compartment.
- Buffer & Shock Absorption: Absorb minor vibration between the valve cover and cylinder head during engine operation, reduce wear and looseness of mating surfaces.
- Noise Reduction: Diminish part vibration noise generated by engine running.




