Peterson Fluid Systems short spline-drive driver washer cap includes a 2.250 in. washer and a 1/2 in. (.50 in.) spline length cap. The short drive cap is sized for use where limited spline engagement is required and ships with the matching 2.250 in. washer for assembly on compatible spline-drive hubs and pulleys in high-performance pump systems.
Peterson Fluid Systems Driver Washer Cap 2.250