Ensure optimal performance for your 2003-2018 5.9/6.7 Cummins with the Cummins 3955393 Valve Seal. This high-quality, direct-fit replacement is engineered to match factory specifications, ensuring a perfect seal and reliable operation. Constructed from premium materials, it offers exceptional durability and longevity. Ideal for maintaining engine efficiency and preventing oil leaks, the Cummins 3955393 Valve Seal is a trusted choice for keeping your engine running smoothly. Upgrade your engine with confidence and experience the difference with Cummins.