Turn firm brake-pedal effort into the hydraulic pressure that operates your brakes with the Dorman - First Stop Brake Master Cylinder M390404. It drops in as a direct-fit replacement for the 1997-1998 Acura TL, 1997-2001 Honda Prelude, and 1998-1999 Acura RL (all engines), pushing fluid through its two outlets to the brake circuits.
Precision-engineered to match the design, function, and performance of the original unit on the listed applications, it's built from new, high-quality materials for a safe, durable replacement.
- Aluminum housing: constructed to match the casting material of the original part for similar performance.
- EPDM rubber components: made of a high-quality EPDM compound for resistance to glycol-based brake fluid.
- 100% new: made entirely of new materials, not remanufactured.
- Strict specifications: made to meet rigorous SAE International standards.
Specs: 1-inch bore, two outlets, M10 x 1.0 outlet threads, and a 1 mm primary outlet thread pitch. The package contains the master cylinder only — no reservoir, fluid-level sensor, or mounting hardware. Consult the vehicle service information for the correct fasteners and whether they may be reused. Country of origin: Taiwan.
Manufacturer part number M390404
