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The Dorman M630034 Brake Master Cylinder is a high-quality replacement part designed for select Chevrolet, GMC, and Oldsmobile models. Engineered with precision, it features durable EPDM rubber components and is made entirely from new materials to ensure optimal performance and safety. This product meets rigorous SAE International standards and guarantees a perfect fit for your vehicle.
| Manufacturer | Dorman Products |
| Brand | Dorman |
| Model | Dorman M630034: Brake Master Cylinder |
| Item Weight | 1.6 ounces |
| Product Dimensions | 9.5 x 6.9 x 4.2 inches |
| Country of Origin | China |
| Item model number | M630034 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | M630034 |
| OEM Part Number | 10-2958; 13-2958; 130.66043; 131.66043; 13546; 174-780; 18M973; 83-44039; F139958; M-86039; M901146; MC139958; MC390571; MC500160; NM3068; NM3097; 18042802; 18060793 |
M**O
Perfect fit
Master cylinder is great works well. Had a mechanic install it. Have ni issues with it.
W**E
Perfect fit
This was exactly as advertised, fit my 2001 GMC Sonoma exactly as advertised, and has been working perfectly ever since. A big + being that it was about $80.00 less then Auto you-know-who, (who was selling the exact same brand product) or any of the rest parts stores around here for that matter. Perfect fit, perfect operation, fair price, quick delivery, what else could you ask for?
B**N
Would recommend
Easy installation and its been a month and i am happy with it
R**E
Works well
Works well
D**T
Work
Works just as described.
T**Y
Brakes are important!
Fit great and stops the truck!
J**.
Dorman M630034 master cylinder
Installed on 2002 Chevy S10 Extreme. Made front brakes drag bad. Took a while to troubleshoot problem. Changed front hoses and rotors. Ended up changing master cylinder to GM master cylinder and fixed problem. Now past window to return.
A**N
Excellent quality and price
It was very easy to install.
B**D
Overall happy
Good price, arrived next day
W**E
Great Price
It was 1/2 the price of anything in my area. Delivered right on time (I have Prime), and took only 20 minutes from start to being back on the road. Very Happy.
R**N
very happy with purchase.
the master cylinder was an exact fit and is working fine. Fast delivery too.
D**Y
Junk
Installed it and the front brakes dragged. I chased the problem for a month. Replacing all rotors,pads,callipers,all flex lines. Stilled dragged. IT WAS THE DORMAN MASTER. Two days passed the warranty!!!!!!!!!!
S**N
Brakes work again!
Perfect fit
Trustpilot
1 week ago
4 days ago
