Dorman M39134 Brake Master Cylinder

Overview of the Dorman Brake Master Cylinder M39134

The Dorman Brake Master Cylinder M39134 is a cast iron hydraulic component designed to deliver reliable braking performance. Engineered for vehicles requiring a 0.75-inch bore diameter, this master cylinder supports precise brake fluid pressure management without including a reservoir or mounting hardware.

• Master cylinder bore diameter: 0.75 inches
• Constructed from durable cast iron material
• Includes three outlets for brake line connections
• Secondary outlet thread diameter: 10 mm
• Rearward outlet size: M10 x 1.25 with 1.25 thread pitch
• Does not include reservoir or sensor
• Package contains master cylinder only

Detailed Product Description

The Dorman M39134 brake master cylinder is built with a cast iron body to withstand the rigors of brake hydraulics systems. Its 0.75-inch bore diameter is suitable for specific vehicle applications requiring precise hydraulic pressure control. Featuring three outlets, including a secondary outlet with a 10 mm thread diameter and a rearward outlet sized M10 x 1.25, this master cylinder facilitates secure brake line connections. The absence of a reservoir and sensor means it is intended for use with existing brake fluid reservoirs and sensor systems on compatible vehicles. This part is ideal for automotive professionals seeking a reliable replacement master cylinder that meets OEM specifications.

Common Applications and Issues Addressed

• Restores proper brake fluid pressure in vehicles with worn or leaking master cylinders
• Eliminates spongy or unresponsive brake pedal feel caused by internal cylinder wear
• Resolves brake fluid leaks from damaged or corroded master cylinder bodies
• Supports brake system repairs requiring a 0.75-inch bore diameter master cylinder
• Compatible with vehicles needing M10 x 1.25 threaded brake line connections

Installation Notes and Tips

• Ensure compatibility with your vehicle’s brake system specifications before installation
• Bleed the brake system thoroughly after installation to remove air and ensure proper hydraulic pressure
• Use appropriate brake fluid as specified by the vehicle manufacturer
• Verify thread pitch and outlet sizes match existing brake lines for a secure fit
• Mounting hardware is not included; reuse existing hardware or acquire separately as needed

Quality Assurance and Warranty

Dorman manufactures the M39134 brake master cylinder to meet industry standards for durability and performance. While mounting hardware and reservoir are not included, the cast iron construction ensures long-lasting service life under normal operating conditions. Please consult Dorman’s warranty policy for specific coverage details related to this part number.