Dorman M630031 Brake Master Cylinder Compatible with Select Cadillac/Chevrolet/GMC Models
Description
🚗 Drive with Confidence - Upgrade Your Brake System Today!
- SAFETY FIRST - Manufactured entirely from new materials, ensuring top-notch quality.
- RIGOROUS STANDARDS - Meets strict SAE International standards for reliability.
- PERFECT FIT GUARANTEE - Use our garage tool to confirm compatibility with your vehicle.
- PRECISION ENGINEERING - Crafted to match original specifications for seamless performance.
- HIGH QUALITY MATERIALS - Constructed with EPDM rubber for superior resistance to brake fluid.
The Dorman M630031 Brake Master Cylinder is a high-quality replacement part designed specifically for select Cadillac, Chevrolet, and GMC models. Constructed from durable aluminum and featuring EPDM rubber components, this master cylinder ensures optimal performance and safety. With a commitment to precision engineering and compliance with SAE International standards, this product is 100% new and ready to enhance your vehicle's braking system.
Specifications
| Manufacturer | Dorman Products |
| Brand | Dorman |
| Model | Dorman M630031: Brake Master Cylinder |
| Product Dimensions | 32 x 19.81 x 13.72 cm; 45.36 g |
| Item model number | M630031 |
| Exterior | Machined |
| Manufacturer Part Number | M630031 |
| OEM Part Number | 10-2881; 13-2881; 130.66041; 131.66041; 13570; 174-1003; F131468; F140673; M-86038; M3089; M901215; M901239; MC140673; MC390541; MC500150; MC500320; NM3089; 18040252; 18048538; 18060789; 19209249 |
| Item Weight | 45.4 g |
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Reviews
D**Y
A easy replacement, no issues, no surprises good value
I was doing brake work on my truck and its 20 yrs old and I was doing calipers and flex lines already, so I figured heck, the master cylinder can't be far behind and its pretty cheap to do, so I ordered this part. Direct replacement and with the bleeding kit (sold separately) I did the "bench bleed" on the truck which for me was easier, however still required two people to see when it was done bubbling.My new brakes are awesome, the pedal is high and hard, no mushy pedal! I'd recommend this part and doing replacement as I did if your vehicle is old and the existing fluid looks crappy and dark. The brake fluid is hydroscopic and adsorbs water from the air, and that is a cause of corrosion to everything in your system - ABS pump, calipers, master cylinder.
P**Y
worked for my nbs on my obs conversion
works well. great fit. was happy with the product and will buy again for a future project truck.
J**C
NBS MC on 98 OBS
Great upgrade for any 88-98 Chev or GMC. Finally I have brakes as good as a brand new truck, no more spongy/soft pedal. Only reason I didn't rate it 5 stars is the price was a little on the high side. . but we always pay alot more in Canada.
D**6
Perfect upgrade
Upgraded the master cylinder on my '96 chevy. Easy installation. Pedal is way stiffer.
C**.
Fit just fine
Used this to replace the master cylinder on my 1994 GMC K1500. Followed many of the website threads and many Youtube videos. Fit just fine and does seem to have shorter pedal travel. Hard to tell though since my rear wheel cylinders were leaking, replaced those also. I like the increased fluid capacity over the original master cylinder.
Common Questions
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