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Pioneer offers a complete line of valve seals, from stock O-rings to positive stop PTFE or Viton® seals. These seals are a must to keep unwanted oil from entering the combustion chamber through the clearance in the valve guides. The O-ring seals use the standard retainer and oil splash shield. The umbrella seals are normally used when a larger-than-stock diameter spring is used. In the case of a double spring, the positive stop PTFE seals are used. For triple-spring applications, use the smaller-diameter Viton® seals.
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Valve Stem Seals, Positive Stop Type, Viton®, 0.710 in. Seal O.D., 0.344 in. Stem Diameter, Set of 1,000
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Part Number: PIO-OS-938-1000
Estimated Ship Date: 2/9/2015 (if ordered today)
This part is normally shipped directly from the manufacturer / Supplier.
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