Excellent Sealing - Superior to factory O-ring and umbrella designs
Fits 3/8" diameter valve stem applications with 0.530" valve guides.
Small 0.575" seal outer diameter accommodates double and triple valve springs.
Part number: 522-16
Fit type: Universal Fit
Description
Providing the best sealing properties and spring clearance, viton valve seals are an excellent choice in performance applications. The 522 seals have a .575" OD and fit applications with 3/8" valves and .530" OD guides.