US Front Brake Master Cylinder for Polaris Sportsman 335 400 450 500 600

Front Brake Master Cylinder for Polaris Sportsman

This front brake master cylinder for Polaris Sportsman models converts lever pressure into hydraulic force that engages the front brakes, and it is a direct replacement for the original unit on 335, 400, 450, 500, and 600 machines.

Overview

The front brake master cylinder for Polaris Sportsman is a complete hydraulic assembly that mounts at the handlebar and pushes brake fluid to the front calipers when the lever is squeezed. It is built for riders replacing a leaking, seized, or damaged master cylinder on 335, 400, 450, 500, and 600 Sportsman models. This front brake master cylinder restores firm, predictable lever feel so you can stop with confidence on the trail.

Built For Performance

• Durable cast body that resists corrosion from brake fluid and trail debris
• Internal piston and seal assembly designed to hold hydraulic pressure without weeping
• Integrated fluid reservoir with cap for straightforward bleeding and top-offs
• Lever pivot and mounting points machined to match the factory handlebar location
• Compatible with standard DOT brake fluid used in Polaris hydraulic systems

Fits These Machines

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

On-The-Job Use

• Replacing a master cylinder that leaks fluid or loses lever pressure
• Restoring front brake response on trail and utility riding
• Routine hydraulic brake service on older Sportsman models
• Repairing damage from a tip-over or handlebar impact

Specs At A Glance

Good To Know

Q: Do I need to bleed the brakes after installing this master cylinder? A: Yes, air must be bled from the front brake circuit after installation so the lever builds firm pressure. Follow the standard bleed sequence for your Sportsman model and check the fluid level as you go.

Q: Is this a direct replacement for my factory master cylinder? A: It is designed to replace the front master cylinder on the listed Sportsman models using the original mounting points and lever. Confirm your model year and serial number before ordering.

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