Kelsey Hayes Style Rear Brake Master Cylinder with 3/4in. Bore – Chrome. Fits FX 1980-1983, FXWG 1980-1982 & Sportster 1980-1981.

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Features & Benefits:-* 3/4in. bore for OEM single piston caliper.* Replaces OEM # 42453-80A, 42454-80, 42415-79A, 42454-80A &42454-82A* Rebuild Kit & BAI-17-0035C-RBTech Tip:-* Brake Line Options.* Brake olive can be removed from the existing master cylinder & refitted to new master cylinder which then requires 3/8in. UNF flare nut fitting # GOO-P6150-03CH and re-use the factory brake line.* Use 10mm banjo bolt # GOO-P775-03CH, 10mm banjo & universal brake line.
MFR PART No: 17-0035C

ROLLIES PART No: BAI-17-0035C