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The Dorman M40000 Brake Master Cylinder is a high-quality replacement part designed to meet or exceed original equipment specifications. Constructed from durable materials and engineered for precise fitment, this master cylinder ensures optimal performance and safety for select vehicle models.
| Manufacturer | Dorman Products |
| Brand | Dorman |
| Model | Dorman M40000: Brake Master Cylinder |
| Item Weight | 4.71 pounds |
| Product Dimensions | 12.1 x 6.5 x 4.6 inches |
| Country of Origin | China |
| Item model number | M40000 |
| Exterior | Machined |
| Manufacturer Part Number | M40000 |
| OEM Part Number | 10-40000; 10-49204; 11362; 13-40000; 13-49204; 130.62017; 131.62017; 18M938; 2536006; 40000; 783-36017; 83-36017; 83-50017; F40000; F49204; M-82017; M40000; M49204; M900057; MC250000; MC250001; MC36006; MC40000; MC49204; NM40000; 18011007; 1921661; 3815832; 3853776; 5461000; 5462031; 5464324; 5464325; 5464735; 5465085; 5465235; 5465245; 5465489; 5465511; 5472953; 9770747; 9773985; 9776476 |
E**P
Identical to the original. Don’t or Do read the instructions?
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.
B**R
Easy replacement, works as it should.
I like how fast the shipping was and I am happy with the quality.
M**L
Great OEM replacement
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.
9**J
Fit good
Worked
W**
Premium product
High quality product at a low price fast shipping highly recommend
J**S
Simple. Cheap. Perfect.
The brake cylinders mounts flush to the firewall. Great fit! Perfect for a true classic vehicle use.
D**W
Brake fluid reservoir fits my 1963 Biscayne like the original.
Easy installation and fits perfectly.
A**R
Value
Haven’t installed yet but I’m sure it will function fine
D**K
Installed on combine for clutch master
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
P**R
66 impala 4 wheel power drum
Bought this for my 66 Impala perfect fit
A**R
This new master cylinder started leaking right away while bench bleading it.
It leaks. Returned for a refund, no problem.
Trustpilot
1 month ago
4 days ago