This one-piece shaft seal/wiper was used on most Penske Racing Shocks until about 1998, including the 8100, 8600, and 8700 series road racing shocks and the 7100 through 7500 circle track shocks. Sold individually.
Fits shocks with 5/8" (0.625") OD shaft only, not for shocks with 1/2" (0.50") OD shaft. This wiper fits old-style shaft bearings (until approximately 1999) with an outer hex. Not for later shaft bearings (1997+) with holes for a spanner wrench.