Turn brake pedal effort into hydraulic pressure for your brakes with the Dorman First Stop Brake Master Cylinder M630326, a new aluminum unit that supplies pressure to the brake system through its two outlets. It fits many vehicles, among them the 2004-2005 Buick LeSabre, 2004-2005 Buick Park Avenue and 2004-2005 Cadillac DeVille with all engines. See the Buyer's Guide tab for the full list.
This master cylinder is precision-engineered to match the design, function and performance of the original master cylinder on the listed applications. It is made from new, high-quality materials for a safe, durable replacement.
- Precise replacement: The aluminum cylinder housing is built to match the original part's casting material and is intended to deliver similar performance.
- Durable design: All rubber components use 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.
Specifications: 1 in bore diameter · 2 outlets · M12 x 1.0 rearward and secondary outlet threads · 1 mm primary outlet thread pitch · reservoir included · sensor included · mounting hardware not included. Country of origin: China.
A master cylinder may need replacing if you notice a soft or sinking brake pedal, brake fluid leaking at the cylinder or reservoir, or a steadily dropping fluid level. Diagnose the cause before you replace any part. Consult the vehicle service information for the bleeding procedure and the correct fasteners.
Interchange: 174-1005 · 100-2344 · 10-2714 · 130.62131 · 355-45019
1741005 · 1002344 · 102714 · 13062131 · 35545019 · 13927 · MC512680 · 18048572 · NM2714B · MC390884 · F141093 · MC141093
This part cross-references / interchanges with the following part numbers:
174-1005, 100-2344, 13927, 10-2714, 130.62131, MC512680, 355-45019, 18048572, NM2714B, MC390884, F141093, MC141093
