









🚦 Stop Hesitating, Start Dominating Your Drive!
The ACDelco 18M1878 Professional Brake Master Cylinder Assembly is a precision-engineered vehicle part that meets stringent SAE J1153 and J1154 brake performance standards. Crafted from a durable combination of cast iron and aluminum, it offers reliable, stress-free mounting and a machined exterior for perfect fitment. Lightweight and compact, this OEM-quality assembly ensures safe, confident braking for professional-grade vehicle maintenance.




| Manufacturer | ACDELCO | 
| Brand | ACDELCO | 
| Model | Brake Master Cylinder Assembly | 
| Product Dimensions | 23.88 x 14.73 x 12.19 cm; 635.03 g | 
| Item model number | 18M1878 | 
| Exterior | Machined | 
| Manufacturer Part Number | 19176488 | 
| OEM Part Number | 19176488 | 
| Item Weight | 635 g | 
A**I
Excellent and cheap
Best product as described
M**K
Perfect
Perfect thank
Trustpilot
5 days ago
3 weeks ago