【Vehicle Fitment】Rear Disc Brake Caliper Compatible with GMC Savana 2500 2003-2020 【Replace Part Number】18-B4934 15751175 18-B4935 15751176 【Caliper Specifications】Position: Rear Driver & Passenger Side, Piston Count: 2 PCS, Piston Diameter: 2 IN, Pistion Material: Phenolic, Inlet Port: M10X1, Bleeder Port: M10X1, With Bracket: Yes, Mounting Hardware: Yes 【Perfect Fit】Each brake caliper is 100% tailored to the original parts of different vehicle models, ensuring a perfect match. You can easily and quickly replace or upgrade it, significantly enhancing your vehicle's performance and driving experience 【Stable Performance】This brake caliper is made from high-quality materials and advanced manufacturing processes, providing stable braking force and quick response. It ensures reliable braking performance under any extreme conditions, guaranteeing driving safety