Handlebar master cylinder, rebuild kit 12.7mm - 15-23 Softail with single disc (ABS & non-ABS) (excl. 19-23 FXFB/S, 18-20(NU)FXDRS; 20-23 FXLRS; 2023 FXLRST); 14-22(NU)XL with single disc (non-ABS) L20 OEM style reproduction of 56159-73

OEM style reproduction of 56159-73 cupped washer kit

This system is a way to vent the oil tank to help reduce pressure build-up and reduce power robbing pressures and stops dipstick blow-out

Since the chain guides and tensioner are eliminated there is no longer the possibility for these parts to fail and damage other engine parts

Manufactured from precision machined tool steel

This is a complete set of gas tank reproduction decals for

Handlebar master cylinder, rebuild kit 12.7mm - 15-23 Softail with single disc (ABS & non-ABS) (excl. 19-23 FXFB/S, 18-20(NU)FXDRS; 20-23 FXLRS; 2023 FXLRST); 14-22(NU)XL with single disc (non-ABS) L20 OEM style reproduction of 56159-7312. 7mm (1 2") bore. Single disc models.