Turn pedal effort into hydraulic pressure for your brake circuits with the Dorman First Stop Brake Master Cylinder M630513, a 100% new unit made entirely from new, high-quality materials. It is listed for several models, among them the 2009-2017 Chevrolet Traverse, 2007-2016 GMC Acadia and 2008-2017 Buick Enclave. See the "Vehicles it fits" section for the full list. Dorman designed it to match the original master cylinder's design, function and performance on the listed applications, and it comes with the reservoir and sensor included.
- Precise replacement: the cylinder housing is constructed to match the original part's material, intended to provide similar performance.
- Durable design: every rubber component is made from a high-quality EPDM compound for resistance to glycol-based brake fluid.
- 100% new: built entirely from new materials for a safe, durable replacement.
- Strict specifications: made to meet rigorous SAE International standards.
Specifications: aluminum master cylinder with a 1.063 in. bore diameter and two outlets. The rearward and secondary outlet threads are M12 x 1.0, and the primary outlet thread pitch is 1 mm. The reservoir and sensor are included. Mounting hardware is not included. Country of origin: China.
Signs a master cylinder may need replacing include a soft or sinking brake pedal, brake fluid leaking at the unit, or a fluid level that keeps dropping. If a failed master cylinder is the cause, this unit replaces it. Diagnose the brake system before replacing parts, and bleed the system after installation as directed by the vehicle service information.
Interchange: 174-1162 · 100-2648 · 13-3383 · 10-3383 · 130.66059 · 355-47185
1741162 · 1002648 · 133383 · 103383 · 13066059 · 35547185 · 22823315 · 25805646 · 25894721 · NM4190 · MC391147 · R135125
This part cross-references / interchanges with the following part numbers:
174-1162, 100-2648, 13-3383, 10-3383, 130.66059, 355-47185, 22823315, 25805646, 25894721, NM4190, MC391147, R135125
Frequently Asked Questions
Is this the right 2007-2016 GMC Acadia master cylinder?
It is listed as a direct-fit replacement for the 2007-2016 GMC Acadia with all engines.
Can I use this as a 2009-2017 Chevy Traverse master cylinder?
Yes. It is listed for the 2009-2017 Chevrolet Traverse and the 2008-2017 Buick Enclave, and the "Vehicles it fits" section shows every listed vehicle.
What comes in the box?
The master cylinder comes with the reservoir and sensor included. Mounting hardware is not included, so consult the vehicle service information for the correct fasteners.
What are the key specifications?
It is an aluminum master cylinder with a 1.063 in. bore diameter and two outlets; the rearward and secondary outlet threads are M12 x 1.0, and the primary outlet thread pitch is 1 mm.
What signs suggest a master cylinder may need replacing?
Signs include a soft or sinking brake pedal, fluid leaking at the unit, or a steadily dropping fluid level. Diagnose the brake system first, and bleed it after installation per the service information.
