Factory# 44127-72A and 44133-72.

Brake Caliper Rebuild Kits.

1972-1980 fits H-D FLH Electra Glide
1979-1980 fits H-D FLHC Electra Glide Classic
1973-1978 fits H-D FX Super Glide
1980 fits H-D FXB Sturgis
1974-1980 fits H-D FXE Super Glide
1979-1980 fits H-D FXEF Fat Bob
1977-1980 fits H-D FXS Low Rider
1980 fits H-D FXWG Wide Glide