Supertech Toyota Yaris / Echo 4AGE 20V 5mm Viton Exhaust / Intake Valve Stem Seal - Set of 12

When you're rebuilding the top end of your Toyota Yaris or Echo with the 4AGE 20V engine, replacing the valve stem seals is a critical step. These seals keep oil from getting into the combustion chamber through the valve guides, which helps prevent smoking and oil consumption. This set from Supertech includes 12 seals, enough for all the intake and exhaust valves on your engine.

These seals are made from Viton, a material known for its excellent resistance to heat and oil. This means they can handle the high temperatures and harsh environment around the exhaust valves and last a long time. The 5mm stem size is specific to the 4AGE 20V, ensuring a proper fit on the valve stems. Installing new seals is a good idea whenever you have the cylinder head off for other work, like valve jobs or head gasket replacement.