Upgrade your 2009-2013 Silverado or Sierra 1500's braking system with the ACDelco Professional Durastop Brake Drum. Designed specifically for your vehicle, this brake drum ensures reliable stopping power and durability. Crafted from high-quality cast iron, it provides a sturdy, uncoated finish for a professional look and long-lasting performance. The part, with the manufacturer number 18B599 and OE/OEM 19292981, fits neatly on the rear left and right sides of your vehicle, ensuring a seamless integration with your braking setup. Its dimensions, including a 295 mm inside diameter and a 4.5-inch height, are made to meet the exact specifications of your SUV or pickup, promising a perfect fit and optimal functionality. Exact item is shown. New open box cast iron brake drum with partial packaging. Item weight 24.4 lbs. 13.2 inch outside diameter. 4.5 inch height. 295mm inside diameter. 296.5mm discard diameter. 6x5.5 bolt pattern. Made in China. No returns if installed. This item is a new, opened customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties.