Dorman M630389 brake master cylinder for the 2004-2008 Chevrolet Aveo and other vehicles turns pedal force into hydraulic pressure for the brakes. Its two outlets send that pressure on to the brake lines.
- Part of the Dorman First Stop line
- Housing constructed to match the casting material of the original part
- All rubber components are EPDM compound, resistant to glycol-based brake fluid
- Made to meet SAE International standards
- Made entirely of new materials
Quick facts
- Part: Dorman M630389 brake master cylinder
- Fits: 2004-2008 Chevrolet Aveo and other vehicles
- Material: Aluminum
- Condition: New
A brake pedal that sinks or feels soft, or reservoir fluid that keeps dropping, can mean the master cylinder is worn, though a leaking brake hose or a sticking caliper may be the actual source, so trace the cause before replacing it.
Fits
This brake master cylinder is for the 2004-2008 Chevrolet Aveo, the 2007-2008 Pontiac G3 and the 2006-2008 Pontiac Wave, with one master cylinder per car.
Specifications
Fit and size
- Quantity per vehicle: 1
- Bore diameter: 0.875 in
- Number of outlets: 2
- Rearward outlet size: M10 x 1.0
- Secondary outlet thread diameter: M10 x 1.0
- Primary outlet thread pitch: 1 mm
Build and materials
- Material: Aluminum
- Condition: New
- Country of origin: Taiwan
In the box
One master cylinder with its reservoir and sensor. Mounting hardware is not included, so plan on new fasteners.
Interchange: 174-1101 · 100-1964 · 13-3132M · 10-3132 · 11-3132M · 130.49013 · 355-47015
93742398 · M4089 · NM4089 · MC390881 · F143135 · MC143135
This part cross-references / interchanges with the following part numbers:
174-1101, 100-1964, 13-3132M, 10-3132, 11-3132M, 130.49013, 355-47015, 93742398, M4089, NM4089, MC390881, F143135, MC143135
Frequently Asked Questions
Is the Dorman M630389 right for a 2007-2008 Pontiac G3?
Yes. The Dorman M630389 is listed for the 2007-2008 Pontiac G3, with one master cylinder per car.
Does the Dorman master cylinder come with the reservoir?
Yes. The package is one master cylinder with its reservoir and sensor. Mounting hardware is not included.
What is the body of this Dorman brake master cylinder made of?
This master cylinder is aluminum. All of its rubber components are EPDM compound, made to resist glycol-based brake fluid.
What size are the outlet threads on this brake master cylinder?
The bore is 0.875 in. The rearward and secondary outlets are M10 x 1.0, and the primary outlet thread pitch is 1 mm.
Does this master cylinder replace the 174-1101 number?
Yes. 174-1101 is on the interchange list for the Dorman M630389, along with 100-1964 and 10-3132.
