{"product_id":"centric-121-66005-disc-brake-rotor","title":"Centric 121.66005 Disc Brake Rotor - Front","description":"\u003ch2\u003eOverview of Centric C-TEK Standard Disc Brake Rotor 121.66005\u003c\/h2\u003e\u003cp\u003eThe Centric C-TEK Standard Disc Brake Rotor 121.66005 is engineered for reliable braking performance on Chevrolet and GMC heavy-duty trucks and vans. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and durability for vehicles such as the Chevrolet C20 and GMC R2500 Suburban.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVented disc brake rotor with smooth surface finish\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 12.5 inches (317.5 mm)\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 1.291 inches (32.8 mm)\u003c\/li\u003e\n\u003cli\u003eDiscard thickness: 1.215 inches (30.86 mm)\u003c\/li\u003e\n\u003cli\u003eEight stud\/lug holes with 0.563 inch stud thread diameter\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter: 4.591 inches (116.6 mm)\u003c\/li\u003e\n\u003cli\u003eMounting bolt hole circle diameter: 6.5 inches (165.1 mm)\u003c\/li\u003e\n\u003cli\u003eWeight: approximately 38.6 lbs (17.55 kgs)\u003c\/li\u003e\n\u003cli\u003eCompatible with Chevrolet and GMC models including C20, C2500, C3500, G30, P20, P30, R20, and R2500 Suburban\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Line Details: C-TEK Standard Disc Brake Rotors\u003c\/h2\u003e\u003cp\u003eThe C-TEK Standard Disc Brake Rotors line by Centric offers rotors manufactured to meet or exceed OEM standards for fit, form, and function. This product line focuses on providing reliable, vented rotors with smooth surfaces designed for consistent braking performance and heat management. The 121.66005 rotor is part of this line, ensuring compatibility and durability for heavy-duty Chevrolet and GMC trucks and vans.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications and Features\u003c\/h2\u003e\u003cp\u003eThis vented disc brake rotor features a nominal thickness of 1.291 inches (32.8 mm) and a discard thickness of 1.215 inches (30.86 mm), providing a clear service life indicator. The rotor’s outside diameter measures 12.5 inches (317.5 mm), suitable for heavy-duty braking applications. It includes eight stud holes with a 0.563 inch thread diameter and a mounting bolt hole circle diameter of 6.5 inches (165.1 mm), ensuring precise fitment on compatible Chevrolet and GMC models. The rotor’s smooth surface type supports consistent pad contact and braking efficiency.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eChevrolet C20 and C20 Suburban\u003c\/li\u003e\n\u003cli\u003eChevrolet C30, C2500, and C2500 Suburban\u003c\/li\u003e\n\u003cli\u003eChevrolet C3500\u003c\/li\u003e\n\u003cli\u003eGMC G30, P20, P30, P2500, and P3500\u003c\/li\u003e\n\u003cli\u003eGMC R20, R20 Suburban, R2500, and R2500 Suburban\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Rotor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake rotor warping and vibration under heavy load\u003c\/li\u003e\n\u003cli\u003eReduced braking efficiency due to worn or thin rotors\u003c\/li\u003e\n\u003cli\u003eOverheating caused by insufficient heat dissipation\u003c\/li\u003e\n\u003cli\u003eUneven brake pad wear from damaged rotor surfaces\u003c\/li\u003e\n\u003cli\u003eNoise and pulsation during braking\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor mounting surface and hub are clean and free of rust or debris before installation. Verify the rotor thickness is above the discard thickness of 1.215 inches (30.86 mm) to maintain safe braking performance. Use proper torque specifications for the eight lug nuts with 0.563 inch stud thread diameter. This rotor does not include bearings or ABS tone rings, so verify compatibility with your vehicle’s existing components. Proper bedding of brake pads after installation is recommended to optimize rotor and pad performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eCentric’s C-TEK Standard Disc Brake Rotors are manufactured to meet OEM quality standards, ensuring reliable performance and fitment. While specific warranty details for part number 121.66005 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.\u003c\/p\u003e","brand":"Centric","offers":[{"title":"Default Title","offer_id":44571110834357,"sku":"BKNJ-121.66005","price":95.47,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12166005_Fro.jpg?v=1774638771","url":"https:\/\/www.partcatalog.com\/products\/centric-121-66005-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}