Raybestos RC11268C R-Line Replacement Remanufactured Rust Prevention Coated Rear Disc Brake Calipers are engineered to face the toughest weather conditions while delivering safe, leak-free performance. Featuring OE-matched design and specifications, these remanufactured calipers offer a proprietary zinc electroplating process to help prevent rust and provide protection for all kinds of weather. The EPDM70 rubber components provide for superior heat resistance, performance and durability. Seals, boots, bleeder screws and o-rings are replaced to guarantee leak-free performance, and pre-lubricated guide pins are also included to help with installation. Raybestos works tirelessly to ensure their calipers are tested to the highest multinational industry standards to ensure you receive a high-quality product. The testing parameters include testing for extreme pressure, cyclic durability under extreme temperatures, piston retraction, fluid displacement and residual drag torque and rubber aging and degradation resistance.