Valve Stem Seals Fit 01-08 Ford Mazda 3.0L OHV 12V VIN U VULCAN. Valve stem seals provide a controlled leak of oil to allow the valve stem to be lubricated as it slides in the valve guide. The amount of oil that passes by the valve stem seal must be precisely controlled, as too little oil causes stem and guide wear. Too much oil causes carbon buildup leading to valve seat damage, decrease in volumetric efficiency, increased emissions and excessive oil consumption. Be sure to have your valve stem seals replace with our aftermarket replacement valve stem seal as soon as it starts to give you any trouble.
This item includes:
12 Valve Stem Seals