Shop OEM GENERAL MOTORS Part # 20982650. Wheel. 19", code: RB9, rear. Coupe, 19", code: RB9, rear. Wheel - Repair or Replace Your wheel may need replacement or repair if you

Rim. Spare wheel. Wheel, alloy.
A wheel / Rim of a vehicle, which may or may not come with a tire mounted to it.

Wheel

Fits CTS

19", code: RB9, rear. Coupe, 19", code: RB9, rear.
Wheel - Repair or Replace
Your wheel may need replacement or repair if you notice a wheel hop in your —in other words, you notice a steering wheel shimmy at highway speeds.