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๐ Stop Confidently, Drive Boldly: Master Your Brakes with Precision!
The Gold 18M2426 Brake Master Cylinder Assembly by ACDelco is a premium, vehicle-specific replacement part combining cast iron and aluminum for durability and stress reduction. It meets rigorous SAE J1153 and J1154 brake performance standards, features a precise 0.937-inch bore diameter, and includes a piston assembly with return spring to prevent brake drag and premature pad wear. Ready to install with no assembly needed, it offers professional-grade reliability backed by a 24-month unlimited mile warranty.










| ASIN | B005OVCHRY |
| Assembly Required | No |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #548,883 in Automotive ( See Top 100 in Automotive ) #1,407 in Automotive Replacement Brake Hydraulic Parts |
| Brand | ACDelco |
| Brand Name | ACDelco |
| Compatible with Vehicle Type | Car |
| Customer Reviews | 4.6 out of 5 stars 336 Reviews |
| Global Trade Identification Number | 40707773812271 |
| Included Components | Brake Master Cylinder Assembly |
| Is Assembly Required | No |
| Item Type Name | Brake Master Cylinder Assembly |
| Item Weight | 1.3 Pounds |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 19288627 |
| Manufacturer Warranty Description | 24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
| Model Number | 18M2426 |
| Model Year | 2003 |
| OEM Equivalent Part Number | 19288627 |
| UPC | 707773812273 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Car |
| Year | 2003 |
C**K
OEM made in China
Good quality and has worked well so far. This was a General Motors replacement part in a GM Delco box. Inside it says made in China. I probably wonโt buy again. Will buy American made if I can find one.
M**S
Great
I like how it fit pretty well
D**L
Perfect Factory Replacement
Install was easy, I originally replaced my hydro pump and was still getting fluid contamination. Had to drain my brakes a few times on couple long trip. Finally replace the brake master cylinder and it fixed the problem. Pre-bleeding the master cylinder was the key to eliminating air in the lines.
D**E
Works as expexted
Works as expected .
D**!
This is a great master cylinder at a fair price when your engine warning light appears!
I have a 2006 GMC Sierra 2500 HD SLE with the 6.0 engine. This was exactly what the doctor ordered! My engine light came on, but this part was perfect and for a very reasonable price!
O**A
Not a Delco but it will get ya by
Seems to be working ok
A**R
Great quality
2006 GMC Sierra Duramax. I installed it alongside all new brake lines and hoses, brakes work great and didnโt brake the bank๐. No leaks holds pressure good!
M**C
Installed on a 2003 3500 Silverado
Perfect solution for jumpy brake pedal. Dirty master cylinder and hydro boost don't work well together. I replaced my master cylinder with this unit and my brakes are back to buttery smooth with apply and release.
F**A
Quality Product as it is OEM.
OEM part and works great! Donโt waste your time buying knockoffs!
G**A
lo mejor ac delco
buen producto funciono muy bien en mi silverado
W**M
good fit
good quality
C**N
Il faut les bons outils
Les freins fonctionne parfaitement maintenant
D**R
Correct Part
Did the job
Trustpilot
2 weeks ago
5 days ago