8-97019846-1 GASKET HD TO COVER For ISUZU NPR66 4HF1

The valve compartment cover pad ‌ is an important part of the engine interior, located between the valve compartment cover and the cylinder head. The main function of the valve chamber cover pad is to seal the valve chamber and prevent oil leakage ‌. It connects the cylinder head and the valve mechanism cover on the top to ensure the tightness of the valve chamber and prevent oil from leaking out of the valve chamber, thus affecting the normal operation of the engine ‌. The specific function of valve chamber cover pad is sealing ‌. Valve chamber cover pad can prevent oil leakage, maintain the internal tightness of the engine, and ensure the normal operation of the engine ‌. Prevent oil leakage ‌, because the valve chamber cover pad is usually made of rubber, it may age and harden after prolonged use, resulting in oil leakage. Therefore, it is very important to regularly inspect and replace the valve chamber cover pad ‌. Prevent gas and coolant leakage ‌ the valve chamber cover pad also prevents the gas and coolant in the combustion chamber from leaking to the outside of the engine, and prevents outside air from entering the combustion chamber, thereby affecting engine performance and fuel efficiency.