Reed Breather Valve Stock Assembly

S&S reed breather valve assembly with 3 steel reeds for Evolution models. S&S reed breather valve assembly features 3 steel reeds that are normally in the closed position the downward cylinder motion increases crankcase pressure to open the reeds on the upward stroke creating a vacuum. Replaces stock breather on 1993-1999 Evolution models. 1993-1998 FXST 1993-1998 FLST 1993-1998 FXD 1993-1998 FLT 1973-1984 FL 1976-1984 FX 1979-1986 FLT 1982-1986 FXR 1984-1986 FXST 1986-FLST 1972-1976 XL