For Polaris Sportsman 335 400 450 500 600 700 Left Front Brake Master Cylinder

Left Front Brake Master Cylinder for Polaris Sportsman

This left front brake master cylinder is a hydraulic pump assembly for Polaris Sportsman ATVs, mounting on the left side to pressurize the front brake circuit when the lever is squeezed.

Overview

This left front brake master cylinder for Polaris Sportsman handles the hydraulic pressure for the front brake on the left side of the handlebar. As a replacement left front brake master cylinder, it brings back solid lever feel and reliable front braking. It fits a broad range of Sportsman 335, 400, 450, 500, 600, and 700 models.

Built For Performance

• Left side mounting position matched to the factory handlebar setup
• Sealed fluid reservoir that resists leaks and contamination
• Mounting holes and lever pivot aligned with original fitment points
• Pushrod and bore sized for consistent hydraulic pressure
• Durable housing built to handle brake fluid and outdoor conditions

Fits These Machines

• for Polaris Sportsman 335
• for Polaris Sportsman 400
• for Polaris Sportsman 450
• for Polaris Sportsman 500
• for Polaris Sportsman 600
• for Polaris Sportsman 700

On-The-Job Use

• Replacing a worn or leaking left master cylinder on a Sportsman ATV
• Fixing a soft or unresponsive front brake lever
• Brake system refresh on older utility quads
• Shop repairs for machines used in farming, hunting, and trail riding

Specs At A Glance

Good To Know

Q: Is this the left side unit only? A: Yes, this listing is for the left front brake master cylinder. Check your machine to confirm which side needs replacement before ordering.

Q: Does the brake system need bleeding after installation? A: Yes, air must be bled from the front brake circuit after fitting a new master cylinder. Use fresh DOT brake fluid and bleed until the lever feels firm.

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