Brake Master Cylinder for SUZUKI DR50 GN400 GP125 GS250 300 400 425 GT125 185

Brake Master Cylinder for Suzuki

This brake master cylinder for Suzuki converts lever input into hydraulic pressure for the braking system, serving models such as the DR50, GN400, GP125, GS250, GS300, GS400, GS425, GT125, and GT185.

Overview

This brake master cylinder for Suzuki supplies the hydraulic push that engages your caliper or drum circuit when you squeeze the lever. It is built for riders reviving older Suzuki machines that need a replacement master cylinder to restore safe, predictable braking. The unit suits a wide spread of displacements from the small DR50 and GP125 up through the GN400 and GS425.

Built For Performance

• Housing machined to hold hydraulic pressure without weeping
• Piston and seal set sized for consistent fluid displacement
• Lever pivot and mounting holes positioned for standard fitment
• Fluid reservoir designed to hold adequate brake fluid volume
• External finish treated to resist moisture and road grime
• Pressure-tested before packaging to catch leaks early

Fits These Machines

• for Suzuki DR50
• for Suzuki GN400
• for Suzuki GP125
• for Suzuki GS250
• for Suzuki GS300
• for Suzuki GS400
• for Suzuki GS425
• for Suzuki GT125
• for Suzuki GT185

On-The-Job Use

• Rebuilding braking on a vintage Suzuki commuter or trail bike
• Replacing a master cylinder that leaks or loses lever pressure
• Restoring a barn-find or project bike to riding condition
• Routine hydraulic brake service on older GS and GT series models

Specs At A Glance

Good To Know

Q: Will this master cylinder work with my existing brake line? A: It is designed to accept standard brake line fittings used on these Suzuki models, but confirm the thread and banjo size on your bike before installing.

Q: How do I know if my old master cylinder needs replacing? A: A spongy lever, visible fluid seepage around the body, or a lever that slowly sinks under pressure all point to a master cylinder that should be replaced.

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