731204 Replacement Parts Rebuild Kit

This Tolle rebuild kit is designed for Kelsey-Hayes style rear master cylinders featuring a 14mm bore size. While originally developed to support the specific hydraulic requirements of Tolle sprocket disc brake systems, this kit is also suitable for various custom Harley-Davidson brake configurations requiring a 14mm plunger diameter. The kit includes the internal components necessary to restore proper hydraulic pressure and seal integrity, addressing issues like soft pedal feel or fluid bypass. Tolle provides these specialized service parts to ensure that custom braking systems continue to operate with the precision required for both show bikes and performance street machines.