ACDelco Rear Brake Rotor - 18A624A Part #: 18A624A Line: ACD ACDelco Rear Brake Rotor 1 Year Limited Warranty Construction: Full Cast Material: Cast Iron ABS Sensor Ring Included: No Discard Thickness (mm): 18.3mm Outside Diameter (in): 11.530 Inch Outside Diameter (mm): 293mm Center Hole Size (mm): 70.75mm Overall Height (mm): 46mm Center Hole Size (in): 2.785 Inch Discard Thickness (in): 0.724 Inch Overall Height (in): 1.810 Inch Slotted: No Number Of Bolt Holes: 5 Solid Or Vented: Vented Rust Resistant Coating: No Surface Finish: Non-Directional Show More Show Less