This Genuine GM/ACDelco Parts Wheel Bearing is a direct replacement for your vehicle's rear outer wheel bearing. It is made with high-quality materials and designed to ensure your car's smooth and stable ride. The package includes one wheel bearing with part numbers RW20-10 and 12479031, and it is compatible with passenger/right or driver/left rear outer placement on your vehicle. This item is perfect for those looking for a reliable replacement for their car's wheel bearing. It is a genuine GM/ACDelco part and is made to fit perfectly with your vehicle. Buy with confidence knowing that this item will provide your car with a smooth and stable ride.