Drag Specialties Rear Master Cylinder Rebuild Kit – Harley Sportster XL 883 / 1200 (2007‑2013) – Repl. 42810‑07A – Includes Metal Piston

OVERVIEW

This aftermarket rebuild kit restores proper rear brake operation by replacing worn hydraulic master cylinder internals. Constructed around a durable metal piston, the assembly delivers reliable fluid displacement and returns pedal responsiveness to factory standards. Perfectly matched to the Sportster platform, it provides a precise overhaul solution for riders maintaining classic braking reliability.

ENGINEERING & PERFORMANCE

The kit improves lever engagement and eliminates spongy brake feel by swapping out degraded rubber components for precision-machined internal parts. Its reinforced metal piston resists corrosion and thermal degradation under repeated braking cycles, extending the total service interval between overhauls. Engineered to meet or exceed original manufacturer tolerances, this unit integrates into existing master cylinder housings while preserving standard bleed procedures.

KEY FEATURES

• Rear master cylinder rebuild kit for hydraulic brake systems
• Precise direct replacement for Harley OEM part number 42810‑07A
• Includes a durable metal piston for improved wear resistance
• Restores proper rear brake pressure and crisp pedal feedback
• Manufactured to meet or exceed OEM dimensional specifications
• High-quality construction designed for extended service life

TECHNICAL SPECIFICATIONS

• Brand: Drag Specialties
• Part Name: Rear Master Cylinder Rebuild Kit
• Part Type: Brake Hardware
• Material: Metal Piston
• Supported Years: 2007–2013
• Compatible Trims: Sportster

FITMENT

• Harley Sportster (2007–2013)

WHY HARLEY RIDERS CHOOSE THIS

Sportster owners select this rebuild kit because it solves inconsistent rear braking without the expense or labor of full master cylinder replacement. The integrated metal piston withstands heat cycling and friction longer than stock rubber units, keeping pedal travel predictable across various riding conditions. By returning hydraulic pressure and tactile feedback to specification, riders gain sharper stoppage confidence and simplified maintenance routines tailored for daily commuting or weekend cruising on the Sportster frame.