Dorman M39641 Brake Master Cylinder

Overview of Dorman Brake Master Cylinder M39641

The Dorman Brake Master Cylinder M39641 is designed specifically for Volvo 740, 760, 780, and 940 models. Engineered with precision, this aluminum master cylinder ensures reliable brake hydraulics performance for your Volvo vehicle.

• Compatible with Volvo 740, 760, 780, and 940 models
• Constructed from durable aluminum material
• Dual bore diameters: 0.625 inch and 0.875 inch
• Includes four outlets with rearward outlet size M10 x 1.0 and 10mm secondary outlet thread diameter
• Does not include reservoir, mounting hardware, or sensor

Detailed Product Features and Specifications

The Dorman M39641 brake master cylinder features two bore diameters, 0.625 inch and 0.875 inch, to accommodate specific brake system requirements in Volvo 740, 760, 780, and 940 models. Manufactured from aluminum, this master cylinder offers corrosion resistance and strength for long-term durability. It includes four outlets, with a rearward outlet size of M10 x 1.0 and a secondary outlet thread diameter of 10mm, designed to fit the brake hydraulics system precisely. Note that this part does not come with a reservoir, mounting hardware, or sensor, so these components must be sourced separately if needed.

Applications and Common Issues Addressed

• Restores proper brake fluid pressure in Volvo 740, 760, 780, and 940 brake systems
• Replaces worn or leaking master cylinders causing brake pedal sponginess
• Solves brake fluid leaks from damaged or corroded master cylinders
• Addresses inconsistent braking performance due to internal seal failure
• Supports brake system rebuilds requiring precise bore diameter specifications

Installation Notes and Tips

When installing the Dorman M39641 brake master cylinder, ensure compatibility with your Volvo 740, 760, 780, or 940 model year and brake system configuration. Since mounting hardware and reservoir are not included, verify that existing components are in good condition or replace as necessary. Properly bleed the brake system after installation to remove air and ensure optimal brake performance. Use thread sealant compatible with brake hydraulics on the M10 x 1.0 rearward outlet and secondary outlet threads to prevent leaks.

Quality Assurance and Warranty Information

Dorman manufactures the M39641 brake master cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum construction provides corrosion resistance and durability under typical operating conditions. While specific warranty details are not provided here, Dorman products generally include a limited warranty against defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.