{"product_id":"centric-121-66040-disc-brake-rotor","title":"Centric 121.66040 Disc Brake Rotor - Front","description":"\u003ch2\u003eOverview of Centric C-TEK Standard Disc Brake Rotor 121.66040\u003c\/h2\u003e\u003cp\u003eThe Centric C-TEK Standard Disc Brake Rotor 121.66040 is engineered for reliable braking performance on select GM trucks and SUVs. Designed to meet OEM specifications, this vented rotor provides consistent stopping power for vehicles like the Chevrolet Silverado 1500 and GMC Sierra 1500.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 121.66040\u003c\/li\u003e\n\u003cli\u003eVented disc brake rotor with smooth surface\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 12.008 inches (305.0 mm)\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 1.146 inches (29.1 mm)\u003c\/li\u003e\n\u003cli\u003eDiscard thickness: 1.071 inches (27.2 mm)\u003c\/li\u003e\n\u003cli\u003eOverall height: 2.291 inches (58.2 mm)\u003c\/li\u003e\n\u003cli\u003eFloating disc mounting type with straight vane style\u003c\/li\u003e\n\u003cli\u003e6 lug holes with 0.646 inch (16.4 mm) diameter\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter: 3.098 inches (78.7 mm)\u003c\/li\u003e\n\u003cli\u003eMounting bolt hole circle diameter: 5.5 inches (139.7 mm)\u003c\/li\u003e\n\u003cli\u003eWeight approximately 19.75 lbs (8.98 kgs)\u003c\/li\u003e\n\u003cli\u003eABS tone ring not included\u003c\/li\u003e\n\u003cli\u003eBearings not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the C-TEK Standard Disc Brake Rotors Line\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 dependable, direct replacement rotors with smooth surfaces and vented designs to optimize heat dissipation. The 121.66040 rotor is part of this line, ensuring compatibility and performance for GM vehicles requiring vented rotors with floating disc mounting.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Centric disc brake rotor features a vented design with straight vanes to enhance cooling during braking, reducing the risk of brake fade. The smooth surface finish supports even pad wear and consistent braking feel. With a nominal thickness of 1.146 inches and a discard thickness of 1.071 inches, this rotor maintains structural integrity and safety throughout its service life. The floating disc mounting allows for slight movement to accommodate thermal expansion and improve rotor longevity. The rotor is designed with six lug holes and a mounting bolt hole circle diameter of 5.5 inches, matching factory specifications for proper fitment on compatible vehicles.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCadillac Escalade, Escalade ESV, Escalade EXT\u003c\/li\u003e\n\u003cli\u003eChevrolet Astro, Avalanche 1500, Express 1500, Express 2500, Silverado 1500, Silverado 1500 Classic, Silverado 1500 HD, Suburban 1500, Tahoe\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500, Sierra 1500 Classic, Sierra 1500 HD, Yukon, Yukon XL 1500, Safari, Savana 1500, Savana 2500\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Rotor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake rotor warping causing vibration during braking\u003c\/li\u003e\n\u003cli\u003eExcessive brake noise due to uneven rotor surface\u003c\/li\u003e\n\u003cli\u003eReduced braking performance from worn or thin rotors\u003c\/li\u003e\n\u003cli\u003eOverheating and brake fade on heavy-duty GM trucks and SUVs\u003c\/li\u003e\n\u003cli\u003eUneven pad wear caused by rotor surface imperfections\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure rotor thickness is above discard thickness (1.071 inches) before installation\u003c\/li\u003e\n\u003cli\u003eClean rotor surface to remove any protective coating before mounting\u003c\/li\u003e\n\u003cli\u003eCheck compatibility with vehicle make and model, including lug pattern and center hole diameter\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications on lug nuts to avoid rotor distortion\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and replace if worn to ensure optimal rotor performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eCentric manufactures the C-TEK Standard Disc Brake Rotors to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 121.66040 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. It is recommended to consult the product packaging or Centric's official documentation for exact warranty terms.\u003c\/p\u003e","brand":"Centric","offers":[{"title":"Default Title","offer_id":44571114766517,"sku":"BKNJ-121.66040","price":62.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12166040_Fro_82ee2413-1444-49ee-8255-6e0452c6cac4.jpg?v=1774638781","url":"https:\/\/www.partcatalog.com\/products\/centric-121-66040-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}