3/4 Bore Rear Master Cylinder Rebuild Kit For Harley XL FL FX FLT KELSEY-HAYES
Rear Master Cylinder Rebuild Kit XL FL FX FLT
Replaces HD# 42374-77B
3/4" Bore Master Cylinder Rebuild Kit
Fits all FL & FX 4 speed, all years with hydraulic rear brake (except FXWG & FXSB)
Softail models 1986/1999
FLH Late 1979/1984
FLT 1980/1985
FX & FXE Late 1979/1983
FXS & FXB Late 1979/1983
Sportster 1979/1981
(Kelsey Hayes type aluminum Master Cylinder)