ProX Front Brake Master Cylinder Rebuild Kit 37910005 - Honda CRF150R / CRF250R / CRF450R 2007-2026

ProX Front Brake Master Cylinder Rebuild Kit — 2007-2026 Honda CRF150R / CRF250R / CRF450R (37910005)

Product Description

The ProX Brake Master Cylinder Rebuild Kit delivers a reliable, high-performance solution for restoring crisp lever feel and braking control on your Honda dirt bike. Designed specifically for the front master cylinder, this kit provides all the essential components needed to service worn internals and eliminate spongy lever feedback during intense motocross and off-road riding.

Engineered to meet or exceed OEM specifications, ProX precision-manufactures each component to ensure exact tolerances, dependable hydraulic sealing, and long-lasting durability under demanding race conditions. Rebuilding your master cylinder with quality parts restores precise brake pressure modulation when you need it most.

Top Features: ProX Brake Master Cylinder Rebuild Kit

• Complete kit contains all necessary components to rebuild the front brake master cylinder for one complete service.
• Assembled with high-quality components designed and manufactured to meet or exceed OEM performance standards.
• Restores firm lever feedback, consistent hydraulic pressure, and dependable stopping power.
• Precision-engineered for exact fitment within factory Honda master cylinder housings.

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: What is included in this master cylinder rebuild kit?
A: The kit contains all the necessary internal components—such as seals, pistons, and springs—required to fully rebuild your front brake master cylinder.

Q: Does this kit fit both front and rear master cylinders?
A: No. This specific kit is designed exclusively for the front brake master cylinder application.

Expert Pro-Tip: When rebuilding your master cylinder, thoroughly clean the bore with clean brake fluid and inspect it for any scoring or pitting before installing new rubber seals. Always bleed the entire hydraulic brake system completely with fresh DOT 4 brake fluid to ensure maximum lever pressure and eliminate trapped air.

Recommended Pairings:

• Honda CRF250R Performance Parts & Accessories
• Honda CRF450R Performance Upgrades & Accessories
• Honda 4-Stroke Dirt Bike Performance Parts

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