Shop OEM General Motors Part # 85117544. Wheel. 18", code: RQ8. SPARE, aluminum, code: S1U. Wheel - Repair or Replace Your wheel may need replacement or repair if you notice a

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 Sierra 1500, Silverado

18", code: RQ8. SPARE, aluminum, code: S1U.
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.