5.5mm Viton Valve Stem Seal Set for Honda K Series (Exhaust) Supertech:Default Title the steel nitride/napier xx rings

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5.5mm Viton Valve Stem Seal Set for Honda K Series (Exhaust) Supertech:Default Title the steel nitride/napier xx ringsSupertech's 5. 5mm Viton valve stem seal set delivers OEM quality sealing for Honda K series exhaust valves. Constructed from premium Viton material, these seals resist high temperature degradation and maintain consistent compression over extended engine operation. The precise 5. 5mm diameter ensures proper fitment on K series cylinder heads without modification. Ideal for rebuilds, performance upgrades, or preventative maintenance on K20, K24, and