Used Valve Seal Kit 1990–2019

Blue-grey smoke on startup that clears once the engine warms up is the classic sign of worn valve stem seals. These rubber seals press onto the valve stem guides in the cylinder head and meter a small amount of oil for lubrication while keeping excess oil out of the combustion chamber. When they harden and crack, oil pools in the intake ports overnight and burns off at startup. Redline connects buyers with 4 sellers who offer engine parts including valve seal kits for engines across 8 makes. Kits typically cover a full set of intake and exhaust seals for one or two cylinder heads, often with valve stem caps and spring seat shims included. Elevated oil consumption without external leaks, fouled spark plugs on the cylinders with the worst seal wear, and oil visible in the intake ports during inspection are the other symptoms. Replacing the seals is one of the more budget-smart engine repairs you can do. Filter by year, make, and model to find a kit for your engine. Common makes in stock include Chevrolet, Honda, Mercedes Benz, Ford, Chrysler. A good seal kit sourced here is a fraction of dealer pricing.