{"product_id":"centric-121-66004-disc-brake-rotor","title":"Centric 121.66004 Disc Brake Rotor - Front","description":"\u003ch2\u003eReliable Disc Brake Rotor for Chevrolet, Dodge, and GMC Trucks\u003c\/h2\u003e\u003cp\u003eThe Centric 121.66004 disc brake rotor is engineered for heavy-duty applications on Chevrolet K30, K3500, Dodge V30, V3500, and GMC W350 models. Designed to meet strict OEM specifications, this rotor ensures consistent braking performance and durability under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 121.66004\u003c\/li\u003e\n\u003cli\u003eBrand: Centric\u003c\/li\u003e\n\u003cli\u003eBrand Line: C-TEK Standard Disc Brake Rotors\u003c\/li\u003e\n\u003cli\u003eVented rotor design with straight vane style for improved heat dissipation\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 12.870 inches (326.9 mm)\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 1.535 inches (38.99 mm); discard thickness: 1.465 inches (37.21 mm)\u003c\/li\u003e\n\u003cli\u003eOverall height: 3.079 inches (78.2 mm)\u003c\/li\u003e\n\u003cli\u003eMounting bolt hole quantity: 8 with 0.587 inch (14.9 mm) diameter\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter: 5.008 inches (127.2 mm)\u003c\/li\u003e\n\u003cli\u003eSurface type: smooth for consistent pad contact\u003c\/li\u003e\n\u003cli\u003eDisc mounting behind the hub\u003c\/li\u003e\n\u003cli\u003eWeight: approximately 28.5 lbs (12.95 kgs)\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 is designed to provide reliable, OEM-quality replacement rotors for a variety of truck applications. This product line focuses on delivering rotors with precise dimensions and vented designs to maintain optimal braking performance and heat management. The 121.66004 rotor fits within this line, offering a vented, smooth surface rotor that meets the specifications required for Chevrolet, Dodge, and GMC heavy-duty trucks.\u003c\/p\u003e\u003ch2\u003eProduct Details and Specifications\u003c\/h2\u003e\u003cp\u003eThis vented disc brake rotor features a straight vane design that enhances airflow and cooling during braking, reducing the risk of brake fade. The rotor’s nominal thickness of 1.535 inches (38.99 mm) and discard thickness of 1.465 inches (37.21 mm) ensure a long service life while maintaining safety standards. With an outside diameter of 12.870 inches (326.9 mm) and an overall height of 3.079 inches (78.2 mm), this rotor is engineered to fit securely behind the hub with eight mounting bolt holes sized at 0.587 inches (14.9 mm) diameter. The smooth surface type promotes even pad wear and consistent braking response. Note that this rotor does not include an ABS tone ring or bearings.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors on Chevrolet K30 and K3500 trucks\u003c\/li\u003e\n\u003cli\u003eRestores braking performance on Dodge V30 and V3500 heavy-duty models\u003c\/li\u003e\n\u003cli\u003eAddresses brake pulsation and noise 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\u003eEnsures proper rotor thickness for safe braking and compliance with manufacturer specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify compatibility with Chevrolet K30, K3500, Dodge V30, V3500, and GMC W350 models before installation\u003c\/li\u003e\n\u003cli\u003eInspect mounting hardware and hub surface for cleanliness and damage prior to rotor installation\u003c\/li\u003e\n\u003cli\u003eEnsure rotor thickness is above discard thickness to maintain safety and performance\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications on mounting bolts to avoid rotor warping\u003c\/li\u003e\n\u003cli\u003eBrake pads should be inspected and replaced if worn to ensure optimal rotor performance\u003c\/li\u003e\n\u003c\/ul\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 dimensional accuracy and material integrity. While specific warranty details for part number 121.66004 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or Centric directly for warranty terms.\u003c\/p\u003e","brand":"Centric","offers":[{"title":"Default Title","offer_id":44571110801589,"sku":"BKNJ-121.66004","price":55.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12166004_Fro.jpg?v=1774638771","url":"https:\/\/www.partcatalog.com\/products\/centric-121-66004-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}