Dorman M390344 Brake Master Cylinder Replacement

The Dorman M390344 is a 100% new replacement brake master cylinder engineered to restore proper braking system function. Designed as a direct OEM replacement, this master cylinder matches the fit, form, and function of the original part, making installation straightforward and reliable.

Unlike remanufactured units, this master cylinder is built entirely from new materials, eliminating the concerns associated with worn or previously used components. The cylinder housing is constructed to match the casting material of the original, while all internal rubber components use high-quality EPDM compound formulated specifically for resistance to glycol-based brake fluids.

Key Features:

• Precise OEM Replacement – Cylinder housing matches the casting material and dimensions of the original for direct-fit installation
• EPDM Rubber Components – High-quality rubber seals and cups resist degradation from glycol-based DOT 3 and DOT 4 brake fluids
• 100% New Construction – Made entirely of new materials, not remanufactured or rebuilt, ensuring maximum safety and longevity
• SAE Compliant – Manufactured to meet rigorous SAE International engineering standards
• Dorman First Stop Brand – Backed by Dorman's extensive aftermarket parts engineering and quality control

The Dorman M390344 brake master cylinder is a dependable, safety-critical replacement that delivers consistent pedal feel and braking pressure. It is the ideal choice for restoring your vehicle's braking system to factory-spec performance.