Brake Caliper Assembly, Rear, Part 1911063 is a genuine OEM brake caliper assembly. It is designed and tested by Polaris Engineers to ensure durability and quality through tens of thousands of miles and thousands of hours of field and lab validation testing. Trust your brake parts are high quality and built for optimal performance. We've been a leader in the powersport industry since 1954, don't settle for anything less than OEM quality.