Leak Proof: Seals can effectively improve the air tightness of the engine and avoid air or liquid leakage, safe and practical.
OE Number: Valve cover center bolt seal set replace part number are 3935449, 3928406. Please make sure the OE number matches the part you are replacing.
Smooth Operation: Car center bolt seals reduce shock and vibration and improve the smoothness and stability of engine operation.
Durable Rubber: Aging resistant rubber material, high temperature resistance, oil resistance, and anti wear, providing long durability.
Compatibility: Valve cover center bolt seal is replacement for Cummins 4BT 6BT 12V 5.9L Engine, which is made according to the prototype model.