


🚗 Stop Smart, Drive Confident – GM-Approved Braking Power
The ACDelco GM Original Equipment 174-1235 Brake Master Cylinder is a precision-engineered hydraulic component designed to meet GM’s exacting standards. Pressure-tested and certified to SAE J1153 and J1154, it ensures reliable, safe braking performance with a perfect fit for your GM vehicle. This GM-recommended replacement part delivers durability and OEM-quality you can trust for long-lasting brake system integrity.





| Manufacturer | ACDelco | 
| Brand | ACDelco | 
| Model | 174-1235 | 
| Item Weight | 2.5 pounds | 
| Product Dimensions | 9.2 x 7.2 x 9 inches | 
| Item model number | 174-1235 | 
| Manufacturer Part Number | 20925765 | 
| OEM Part Number | 20925765 | 
R**X
Master cylinde
Worked great. Can't go wrong with ac delco.
C**L
Avoid the major mark up?
Ordering these parts through Amazon save me enough money that just a savings on the parts alone covered the labor to have them professionally installed.
B**O
OEM? Failed after 6 months
We bought a 2017 GMC yukon denali. The headline says it all. The next time our truck needs a part, a GM OEM part will no longer be a priority requirement.