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Dorman M40000 Brake Master Cylinder Compatible with Select Models

Free shipping on orders over $29.99

$37.86

$ 16 .99 $16.99

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. [Buick Gran Sport: 1965, 1966] - [Buick Skylark: 1965, 1966] - [Buick Special: 1964, 1965, 1966] - [Chevrolet Bel Air: 1962, 1963, 1964, 1965, 1966] - [Chevrolet Biscayne: 1962, 1963, 1964, 1965, 1966] - [Chevrolet C10 Pickup: 1963, 1964, 1965, 1966] - [Chevrolet C20 Pickup: 1963, 1964, 1965, 1966] - [Chevrolet C30 Pickup: 1963, 1964, 1965, 1966] - [Chevrolet Caprice: 1966] - [Chevrolet Chevelle: 1964, 1965, 1966] - [Chevrolet Chevy II: 1962, 1963, 1964, 1965, 1966] - [Chevrolet Corvair: 1962, 1963, 1964, 1965, 1966] - [Chevrolet El Camino: 1964, 1965, 1966] - [Chevrolet G10 Van: 1964, 1965, 1966] - [Chevrolet Impala: 1962, 1963, 1964, 1965, 1966] - [Chevrolet K10 Pickup: 1963, 1964, 1965, 1966] - [Chevrolet K20 Pickup: 1963, 1964, 1965, 1966] - [Chevrolet Malibu: 1964, 1965, 1966] - [Chevrolet Suburban: 1963, 1964, 1965, 1966] - [GMC 1500 Series: 1963, 1964] - [GMC G1500: 1964, 1965, 1966] - [GMC K1000 Pickup: 1966] - [GMC K15/K1500 Pickup: 1966] - [GMC Suburban: 1963, 1964, 1965, 1966] - [Jeep Wagoneer: 1964, 1965, 1966] - [Oldsmobile 442: 1965, 1966] - [Oldsmobile 98: 1965, 1966] - [Oldsmobile Cutlass: 1964, 1965, 1966] - [Oldsmobile Delta 88: 1965, 1966] - [Oldsmobile Dynamic 88: 1965, 1966] - [Oldsmobile F85: 1964, 1965, 1966] - [Oldsmobile Vista Cruiser: 1964, 1965, 1966] - [Pontiac Bonneville: 1962, 1963, 1964, 1965, 1966] - [Pontiac Catalina: 1962, 1963, 1964, 1965, 1966] - [Pontiac Grand Prix: 1962, 1963, 1964, 1965, 1966] - [Pontiac GTO: 1964, 1965] - [Pontiac LeMans: 1964, 1965] - [Pontiac Star Chief: 1962, 1963, 1964, 1965, 1966] - [Pontiac Tempest: 1964, 1965]


MINECRAFT MAN
Reviewed in the United States on February 24, 2025
Perfect fit but not sure why this one has an extra flared fitting on the top
Daniel Laycock
Reviewed in Canada on September 28, 2024
Yes came quick, price ok installed for combine clutch master, had to shorten top of bleeder to fit,but was perfect I I put on the chev
Brendan the Groomer
Reviewed in the United States on August 6, 2024
I like how fast the shipping was and I am happy with the quality.
92 yj
Reviewed in the United States on July 18, 2024
Worked
echo10mp
Reviewed in the United States on June 29, 2024
It fit perfectly. Nice quality and finish.My issue was the directions say to bench bleed the master cylinder. They had a bulletin in the box that said do not bench bleed. So who do you believe? I called and talked to a Dorman tech and he said bench bleed. I asked him to check with an engineer. He came back and said on that particular one DON’T BENCH BLEED. They need to get this stuff straight. This is my braking system.
Mr. Mechanical
Reviewed in the United States on February 11, 2024
I have worked in the automotive industry for over 25 years Dorman makes some off the best products you can get at an affordable price.
R Gerek
Reviewed in the United States on November 26, 2024
The JD 6600 rebuild clutch master cylinder is NLA, JD wanted $420.00 for a replacement, this was less the $40.00 and if you plug the bleed screw it fits and works perfectly.
Wes
Reviewed in the United States on October 25, 2024
High quality product at a low price fast shipping highly recommend
Joseph Willis
Reviewed in the United States on November 8, 2022
The brake cylinders mounts flush to the firewall. Great fit! Perfect for a true classic vehicle use.
Customer
Reviewed in Canada on September 22, 2021
It leaks. Returned for a refund, no problem.
Piper
Reviewed in Canada on August 4, 2019
Bought this for my 66 Impala perfect fit