Ensure optimal performance and durability with the Cummins 5405392 Rear Main Seal, designed for 1989-2018 5.9/6.7 Cummins engines. This direct-fit replacement is crafted from premium materials to maintain factory specifications and prevent oil leaks. While it ensures a precise seal and reliable function, please note that it does not include the cover gasket. Ideal for both routine maintenance and repairs, this rear main seal keeps your engine running smoothly and efficiently.