Restore rear brake performance with this rebuild kit designed for 1986–1991 FLHS and FLHT models.
The Bikers Choice Rear Master Cylinder Rebuild Kit offers a reliable solution for repairing worn or leaking brake master cylinders on Harley-Davidson FLHS and FLHT motorcycles from 1986 to 1991. This kit is a direct replacement for OEM part number 42374-86 and includes all necessary internal components to restore proper hydraulic function. Precision-made to meet or exceed factory specifications, the components ensure long-term durability and consistent braking response. The kit is ideal for maintenance, restoration, or troubleshooting brake issues related to master cylinder wear.
Key Features:
Vehicle Fitment: Designed for 1986–1991 Harley-Davidson FLHS and FLHT rear master cylinders
OEM Replacement: Replaces Harley-Davidson part number 42374-86
Complete Kit: Includes seals, springs, and internal hardware for a full rebuild
Reliable Performance: Restores proper brake pressure and responsiveness
Durable Construction: Manufactured to match OEM specs using high-quality materials
Maintenance Friendly: Ideal for addressing leaks, wear, or spongy pedal feel
This Bikers Choice rebuild kit helps maintain safe braking by restoring factory-level hydraulic performance on older FL touring models.
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