🚗 Stop on a Dime with Confidence!
The ACDelco Professional 18M1878 Brake Master Cylinder Assembly is engineered to meet rigorous SAE J1153 and J1154 performance standards, ensuring reliability and safety. With a robust design featuring cast iron and aluminum, it minimizes stress on brake boosting mounts while its precise geometrical tolerance guarantees a perfect fit. The innovative piston assembly and return spring work together to prevent brake drag, extending the life of your brake pads.
| Manufacturer | ACDelco |
| Brand | ACDelco |
| Model | Brake Master Cylinder Assembly |
| Item Weight | 1.4 pounds |
| Product Dimensions | 9.4 x 5.8 x 4.8 inches |
| Country of Origin | China |
| Item model number | 18M1878 |
| Exterior | Machined |
| Manufacturer Part Number | 18M1878 |
| OEM Part Number | 19176488 |
N**.
It fit as it should
Fit well. Looks to be good quality. Had no issues bleading at all. Bench bled very easily.
M**.
Perfect fit and performance
Item arrived quickly. It was a direct replacement for 1977 Pontiac Firebird. Easy install and works perfectly. Instructions are included for bench bleeding.
A**R
Exact fit and replacement
This was an exact fit and works perfectly
A**.
Fit my K10
Great fit for my 1978 K10.
R**S
AC/Delco Master Cyl at a Great Price
Even though I have not installed the Master Cylinder due to the weather, I do not expect to run into any issues. The new master cylinder came right away and was in a sealed plastic bag to prevent any corrosion. I do plan to give it a light coat of paint in order to prevent any corrosion. This is a new master and not a rebuild. The price was excellent and free shipping at the time I order it. Cheaper than auto part stores and this was a new unit and theirs were rebuilds. Highly recommend it.
R**N
Fit perfectly
Awesome product it fit perfectly. Easy installation
M**Y
Great quality
Followed instruction to bench bleed air out of master cylinder. A decent mounted stable bench vise was required. Used appropriate brake fluid, and a blunt object to press plunger in no more than 3/4"-1" and bled brakes on vehicle.Brake pedal near top with excellent firmness now.
K**R
Worked perfectly
This was a "used" item from Amazon warehouse ... looked perfect worked perfectly ... saved a couple of $$ ...
Trustpilot
5 days ago
3 weeks ago
