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Dorman M630035 Brake Master Cylinder Compatible with Select Cadillac / Chevrolet / GMC Models

Free shipping on orders over $29.99

$63.18

$ 28 .99 $28.99

In Stock
  • Precise replacement - cylinder housing is constructed to match the casting material of the original part and ensure similar performance
  • Durable design - all rubber components are made of high-quality EPDM compound for resistance to glycol-based brake fluid
  • 100% new - made entirely of new materials, not remanufactured, to ensure highest quality and safety
  • Strict specifications - made to meet rigorous SAE International standards
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the garage tool


This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Cadillac Escalade EXT: 2002] - [Cadillac Escalade: 2002] - [Chevrolet Avalanche 1500: 2002] - [Chevrolet Avalanche 2500: 2002] - [Chevrolet Blazer: 2001, 2002] - [Chevrolet Silverado 1500 HD: 2001, 2002] - [Chevrolet Silverado 1500: 2001, 2002] - [Chevrolet Silverado 2500 HD: 2001, 2002] - [Chevrolet Silverado 2500: 1999, 2000, 2001, 2002] - [Chevrolet Silverado 3500: 2001, 2002] - [Chevrolet Suburban 1500: 2000, 2001, 2002] - [Chevrolet Suburban 2500: 2000, 2001, 2002] - [Chevrolet Tahoe: 2001, 2002] - [GMC Sierra 1500 HD: 2001, 2002] - [GMC Sierra 1500: 2001, 2002] - [GMC Sierra 2500 HD: 2001, 2002] - [GMC Sierra 2500: 1999, 2000, 2001, 2002] - [GMC Sierra 3500: 2001, 2002] - [GMC Yukon XL 1500: 2001, 2002] - [GMC Yukon XL 2500: 2000, 2001, 2002] - [GMC Yukon: 2001, 2002]


badiollah rahmi
Reviewed in the United States on January 13, 2025
Great service.
jonathan hardin
Reviewed in the United States on September 9, 2024
Work that should I ended up not even needing it once I took the old one off realized it was in great shape so I ordered this one for no reason however I used it might as well and it's giving me no problems Great experience from this buyer. No leaks good quality easy to install.
Jfer87
Reviewed in the United States on May 6, 2024
Brakes were locking up due to a clog inside the master cylinder, this fixed it and now the brakes work perfectly. Installed on a 2001 silverado 3500 cab and chassis
Tom C.
Reviewed in Canada on February 25, 2024
Used this master with my 1 ton swap, 1981 gm dually front Dana 60 brakes, rear 2001+ gm 14 bolt brakes. Used with a PV4 prop valve and 2005 GM hydro booster.Do a proper bench bleed on it with the oil going through lines back into the reservoir. Trying to bench bleed with the plugs it came with was useless.Way better pedal feel that a small bore master cyl on hydroboost setup.
Customer
Reviewed in the United States on February 16, 2023
Installed an works great, my brakes are working fine. Thanks....
Christie
Reviewed in the United States on December 17, 2023
Fit perfectly.
Gregory S. Martin
Reviewed in the United States on August 8, 2022
Fit right
jena s lewis
Reviewed in the United States on July 28, 2022
So anyways, yeah, it fits on an S10. 3/4 ton SAS swap if you must know. The important thing here is that it works as it should. I feel it's important for you to know that this is for the Hydroboost though. Yes I used the stock S10 vacuum booster for now. Hydro boost setups are expensive okay. The breaks are a tad stiff, but no problems over all. If you're not going to use this on hydro boost, find the one for the vacuum boost version. It'll be a lot softer.
michael blouin
Reviewed in Canada on July 14, 2021
Perfect for my silverado 2500hd
Chase Anderson
Reviewed in Canada on May 8, 2021
Awesome aftermarket Master. Bolts right on, no problems or issues
Ken S
Reviewed in the United States on April 9, 2021
Literally took longer to bleed the brake system than to install the master cylinder. It also has the monitor plug at the bottom just like the OEM, so everything lined up perfectly. I assume the plug is to monitor the fluid level in the reservoir.I pre-bled using the Dorman 14151 Bleed Kit; this is the kit you want because it has TWO of each size plug. I also needed a 15mm flare wrench to remove and reinstall the two bleed lines. The 2 bolts that hold the master cylinder to the firewall were 15mm as well, so I used the wrench for both areas.
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