









🚗 Drive with Confidence: Your Safety is Our Priority!
The ACDelco 18M1878 Professional 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, this assembly minimizes stress on brake boosting mounts while its geometrical tolerance guarantees a perfect fit. The pressure-tested unit includes a piston assembly and return spring to prevent brake drag, extending the life of your brake pads.





| Manufacturer | ACDelco | 
| Brand | ACDelco | 
| Product Dimensions | 23.88 x 14.73 x 12.19 cm; 635.03 Grams | 
| Item model number | 18M1878 | 
| Manufacturer Part Number | 18M1878 | 
| OEM Part Number | 19176488 | 
| Volume | 262 Cubic Inches | 
| Manufacturer | ACDelco | 
| Country of Origin | USA | 
| Item Weight | 635 g | 
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