Turn each press of the brake pedal into hydraulic braking pressure with this Dorman brake master cylinder, part number M630743 from the Dorman - First Stop line. It is a direct-fit replacement for the 1999-2000 UD 1200 and 1994-2000 UD 1400. The master cylinder converts pedal force into hydraulic pressure and sends brake fluid through the lines to the brakes at each wheel. If a leaking or worn original cylinder is causing a soft or sinking pedal, this unit replaces it.
Dorman engineered it to mirror the original master cylinder's design, function and performance on the listed applications. It is built from new, high-quality materials for a safe, durable replacement.
- Precise replacement: the cylinder housing is constructed to match the casting material of the original part for similar performance.
- Durable design: every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
- 100% new: made entirely of new materials for quality and safety.
- Strict specifications: made to meet rigorous SAE International standards.
A master cylinder may need replacing if the brake pedal feels spongy or sinks, if fluid seeps from the cylinder, or if the brake fluid level keeps dropping. Other brake components can cause these symptoms, so diagnose the system before replacing parts. Follow the vehicle service information for installation, including bleeding the brake system.
Interchange: 100-4087 · 11-3360 · 130.77001 · 355-27023
460100T300 · 460100T301 · F131748 · MC131748 · 1004087 · 113360 · 13077001 · 35527023
This part cross-references / interchanges with the following part numbers:
100-4087, 11-3360, 130.77001, 355-27023, 460100T300, 460100T301, F131748, MC131748
