Help keep a firm, responsive brake pedal with the Dorman First Stop Brake Master Cylinder M39848, a 1990-1994 Subaru Legacy master cylinder that converts pedal force into hydraulic pressure for the brake system. It installs as a direct-fit replacement for the 1990-1994 Subaru Legacy (all engines). Dorman precision-engineers it to mirror the original master cylinder's design, function, and performance on the listed application, and builds it from new, high-quality materials for a safe, durable replacement.
- Precise replacement: The aluminum cylinder housing is built to match the original part's housing material for similar performance.
- Durable design: Every rubber component uses a high-quality EPDM compound to resist glycol-based brake fluid.
- 100% new: Made entirely from new materials for quality and safety.
- Strict specifications: Made to meet rigorous SAE International standards.
Specifications: 1 in bore diameter; 3 outlets; M10 x 1.0 rearward outlet size; M10 x 1.0 secondary outlet thread diameter; 1 mm primary outlet thread pitch. The reservoir and sensor are included. Mounting hardware is not included. Country of origin: Taiwan.
Signs this part may need replacing: a soft or sinking brake pedal, brake fluid leaking at the master cylinder, or an illuminated brake warning light. Other brake faults can cause these symptoms too, so diagnose the system before replacing anything. If the master cylinder is the cause, M39848 replaces it.
The listed application uses one master cylinder. Package contents: one master cylinder.
