Supertech Honda LS / Mitsubishi (Reduced Dia) 6.6mm Polyacrylic Intake Valve Stem Seal

These Supertech valve stem seals feature a 6.6mm reduced diameter, specifically chosen for certain Honda LS and Mitsubishi engine applications. They are made from polyacrylic material, which offers good resistance to heat and oil degradation, helping to keep them pliable and effective over time. When you're rebuilding an engine or just replacing worn valve seals, using the correct size and material is key to preventing oil from entering the combustion chamber through the valve guides.

Properly sealing the valve stems helps maintain compression, reduces oil consumption, and keeps your exhaust cleaner. This particular seal's polyacrylic construction is a solid choice for intake applications where it needs to handle moderate temperatures and resist breakdown from engine oil. Ensuring a good seal here is a small but important step in getting your engine running right.