The Supertech valve stem seal is a 6mm Viton exhaust replacement supplied individually for Subaru EJ25 and Toyota 3S‑GTE/4A‑GE engines. Built for direct-fit service, the Viton material resists oil and heat exposure common at exhaust valves while helping maintain valve stem sealing. This single seal is intended for targeted repairs on the listed Subaru and Toyota engine applications.
Supertech Subaru EJ25 / Toyota 3SGTE/4AGE 6mm Viton Exhaust Valve Stem Seal - Single (D/S Only)