{"product_id":"centric-121-66050-disc-brake-rotor","title":"Centric 121.66050 Disc Brake Rotor - Rear","description":"\u003ch2\u003eReliable Disc Brake Rotor for Chevrolet and GMC 3500 Series\u003c\/h2\u003e\u003cp\u003eThe Centric C-TEK Standard Disc Brake Rotor 121.66050 is engineered for dependable braking performance on heavy-duty Chevrolet and GMC trucks. Designed specifically for models like the Silverado 3500 HD and Sierra 3500 Classic, this vented rotor ensures consistent heat dissipation and durability under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVented disc brake rotor with straight vane design for effective cooling\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 1.181 inches (30.000 mm) with discard thickness at 1.122 inches (28.500 mm)\u003c\/li\u003e\n\u003cli\u003eOverall height of 5.177 inches (131.500 mm) and outside diameter of 12.795 inches (325.000 mm)\u003c\/li\u003e\n\u003cli\u003eEight stud\/lug holes with a 6.500 inch (165.100 mm) bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter of 4.835 inches (122.800 mm) for precise fitment\u003c\/li\u003e\n\u003cli\u003eSolid smooth surface type without ABS tone ring included\u003c\/li\u003e\n\u003cli\u003eWeight approximately 29 lbs (13.18 kgs) for balanced performance\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 a balance of quality and value for professional and commercial vehicle applications. This product line focuses on providing rotors that meet or exceed OEM specifications, featuring vented designs to improve heat dissipation and reduce brake fade. The 121.66050 rotor is part of this line, delivering consistent braking performance for Chevrolet Express 3500 and GMC Savana 3500 vans, as well as heavy-duty Silverado and Sierra 3500 trucks.\u003c\/p\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis disc brake rotor features a vented design with straight vanes to optimize airflow and cooling during braking. The nominal thickness is 1.181 inches (30.000 mm), with a discard thickness of 1.122 inches (28.500 mm), ensuring safe replacement intervals. The rotor’s outside diameter measures 12.795 inches (325.000 mm), and it has an overall height of 5.177 inches (131.500 mm). It mounts using eight lug holes with a 6.500 inch (165.100 mm) bolt circle diameter and a center hole diameter of 4.835 inches (122.800 mm). The smooth surface type is designed for consistent pad contact without ABS tone ring integration.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors on Chevrolet Silverado 3500 HD and GMC Sierra 3500 Classic\u003c\/li\u003e\n\u003cli\u003eAddresses brake pulsation and vibration issues caused by rotor surface irregularities\u003c\/li\u003e\n\u003cli\u003eImproves heat dissipation to reduce brake fade during heavy towing or hauling\u003c\/li\u003e\n\u003cli\u003eRestores proper rotor thickness to maintain braking efficiency and safety\u003c\/li\u003e\n\u003cli\u003eCompatible with Chevrolet Express 3500 and GMC Savana 3500 for reliable stopping power\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor surface is clean and free of rust or debris before installation. Verify the rotor thickness is above the discard limit of 1.122 inches (28.500 mm) to maintain safety standards. Use proper torque specifications for the eight lug nuts on the 6.500 inch (165.100 mm) bolt circle. This rotor does not include bearings or an ABS tone ring, so confirm compatibility with your vehicle’s braking system. It is recommended to replace brake pads simultaneously to ensure even wear and optimal braking 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 or exceed OEM standards for fit, form, and function. Each rotor undergoes rigorous quality control to ensure durability and consistent performance. While specific warranty details for part number 121.66050 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or Centric directly for warranty terms applicable to this rotor.\u003c\/p\u003e","brand":"Centric","offers":[{"title":"Default Title","offer_id":44571116667061,"sku":"BKNJ-121.66050","price":76.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12166050_Fro.jpg?v=1774638784","url":"https:\/\/www.partcatalog.com\/products\/centric-121-66050-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}