MCS-977902 - Steel breather valve thrust washer for use with steel beather valves. These spacers fit all S&S breather valves and are identical to L77-99 OEM style (large hole) replacement spacers. Used to set correct end play. Note: Steel breathers require steel bre

Fitment:
L77-99 B.T. (excl. Twin Cam) (NU); 36-99 S&S style cams (NU)