





🚗 Upgrade your brakes, upgrade your drive — don’t get left behind!
The ACDelco Silver Rear Brake Rotor 18A2546A is a durable, cast iron rotor engineered for select Honda and Acura models. Featuring multi-alloy construction and a non-directional finish, it optimizes heat dissipation, reduces noise and vibration, and extends brake pad life. Designed for a precise vehicle-specific fit, this rear rotor delivers reliable braking performance and long-lasting durability, backed by GM quality standards.





| Brand | ACDelco | 
| Material | Cast Iron | 
| Exterior Finish | Cast Iron | 
| Vehicle Service Type | Car, Sedan | 
| Manufacturer | ACDelco | 
| Automotive Fit Type | Vehicle Specific Fit | 
| OEM Part Number | 19255509 | 
| UPC | 707773846636 | 
| Global Trade Identification Number | 00707773846636 | 
| Model | 18A2546A | 
| Item Weight | 9.1 pounds | 
| Product Dimensions | 12.3 x 12.3 x 2.3 inches | 
| Item model number | 18A2546A | 
| Manufacturer Part Number | 19255509 | 
| Position | Rear | 
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