Rear Brake Master Cylinder Pump for 110cc 125 140cc SSR TaoTao ATV Dirt Pit Bike

Rear Brake Master Cylinder Pump for 110cc 125 140cc Pit Bikes

This rear brake master cylinder pump is a direct replacement hydraulic unit for 110cc, 125cc, and 140cc ATV and dirt pit bikes, converting lever pressure into the hydraulic force that engages the rear caliper so you can stop with confidence.

Overview

This rear brake master cylinder pump is built to restore reliable rear braking on 110cc, 125cc, and 140cc ATV and dirt pit bikes. The rear brake master cylinder pump pushes hydraulic fluid through the line to the caliper, giving you consistent lever feel and dependable stopping power on the trail. It is a practical replacement for riders servicing a worn or leaking master cylinder on a 110cc, 125cc, or 140cc machine.

Built For Performance

• Rear brake master cylinder design matches the original mounting and hose layout for straightforward installation
• Hydraulic piston and seal assembly built to hold pressure without weeping under repeated lever strokes
• Reservoir body sized for the fluid volume needed by 110cc to 140cc rear brake systems
• Lever pivot and pushrod interface engineered for smooth, consistent engagement
• Housing finished to resist corrosion from mud, water, and trail debris

Fits These Machines

• for SSR 110cc pit bikes
• for SSR 125cc pit bikes
• for SSR 140cc pit bikes
• for TaoTao 110cc ATVs
• for TaoTao 125cc ATVs
• for TaoTao 140cc ATVs
• for 110cc dirt pit bikes
• for 125cc dirt pit bikes
• for 140cc dirt pit bikes

On-The-Job Use

• Rear brake repairs on SSR and TaoTao ATVs and pit bikes
• Trail and track riding where dependable rear braking matters
• Routine hydraulic system refresh on 110cc to 140cc machines
• Workshop spares for shops servicing small-displacement ATVs and pit bikes

Specs At A Glance

Good To Know

Q: How do I know this master cylinder fits my bike? A: Check your existing rear master cylinder's mounting bolt pattern, hose fitting, and lever orientation against this unit before ordering. Matching those points confirms a correct rear brake master cylinder pump for 110cc to 140cc ATVs and pit bikes.

Q: Does the master cylinder come with brake fluid installed? A: No, hydraulic brake parts ship dry and must be bench bled and filled before use. Use fresh DOT brake fluid recommended for your machine and bleed the rear system until lever feel is firm.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.