Rear Brake Master Cylinder for Polaris Sportsman 400 450 500 570 800

Rear Brake Master Cylinder for Polaris Sportsman 400 450 500 570 800

This rear brake master cylinder is a direct-fit replacement for Polaris Sportsman 400, 450, 500, 570, and 800 models, restoring reliable rear braking performance.

Overview

This rear brake master cylinder is built to replace a worn or failed unit on Polaris Sportsman 400, 450, 500, 570, and 800 ATVs. It converts lever pressure into hydraulic force to actuate the rear brakes, keeping stopping power consistent on the trail or job site. It is a solid choice for riders performing routine maintenance or restoring an aging machine.

Built For Performance

• Direct-fit replacement for Polaris Sportsman rear brake systems
• Hydraulic design for consistent brake actuation
• Durable construction to withstand off-road conditions
• Compatible with multiple Sportsman displacement models
• Designed to restore reliable rear braking

Fits These Machines

• for Polaris Sportsman 400
• for Polaris Sportsman 450
• for Polaris Sportsman 500
• for Polaris Sportsman 570
• for Polaris Sportsman 800

On-The-Job Use

• Replacing a leaking or seized rear master cylinder
• Routine brake system maintenance on Sportsman ATVs
• Restoring braking performance on a used machine
• Trail and utility riding where dependable rear brakes matter

Specs At A Glance

Good To Know

Q: Will this master cylinder fit my Polaris Sportsman? A: It is designed for Sportsman 400, 450, 500, 570, and 800 models, but confirm your exact year and serial number before ordering. Q: Is bleeding required after installation? A: Yes, the brake system should be bled after installing a new master cylinder to remove air and restore firm lever feel.

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