{"product_id":"centric-121-33087-disc-brake-rotor","title":"Centric 121.33087 Disc Brake Rotor - Front","description":"\u003ch2\u003eOverview of Centric C-TEK Standard Disc Brake Rotor 121.33087\u003c\/h2\u003e\u003cp\u003eThe Centric C-TEK Standard Disc Brake Rotor 121.33087 is engineered for reliable braking performance on Audi S4 models. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and durability for everyday driving conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Audi S4 vehicles\u003c\/li\u003e\n\u003cli\u003ePart number 121.33087 for precise identification\u003c\/li\u003e\n\u003cli\u003eVented disc brake rotor design for improved cooling\u003c\/li\u003e\n\u003cli\u003eOverall diameter of 345 mm (13.583 inches)\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 30 mm (1.181 inches) with discard thickness at 28 mm (1.102 inches)\u003c\/li\u003e\n\u003cli\u003eFloating disc mounting style with straight vane design\u003c\/li\u003e\n\u003cli\u003e5 stud\/lug holes with 15 mm (0.591 inches) diameter\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter of 68 mm (2.677 inches)\u003c\/li\u003e\n\u003cli\u003eWeight approximately 11.59 kg (25.5 lbs)\u003c\/li\u003e\n\u003cli\u003eABS tone ring 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 focuses on delivering OEM-equivalent replacement rotors that meet factory specifications. This product line emphasizes consistent performance and fitment accuracy, making it suitable for routine maintenance and brake system repairs on vehicles like the Audi S4. The 121.33087 rotor maintains the original equipment dimensions and vented design to ensure proper heat management and braking efficiency.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis Centric disc brake rotor features a vented design with straight vanes that facilitate effective airflow to reduce heat buildup during braking. The smooth surface finish supports even pad contact and wear. With a nominal thickness of 30 mm and a discard thickness of 28 mm, this rotor provides a clear service life indicator to maintain safe braking performance. The floating disc mounting style allows for slight movement to accommodate thermal expansion and reduce stress on the braking system. The rotor’s 345 mm outside diameter and 68 mm center hole diameter ensure proper fitment on Audi S4 models equipped with 5 lug holes spaced on a 112 mm bolt circle diameter.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors causing brake pulsation\u003c\/li\u003e\n\u003cli\u003eAddressing reduced braking efficiency due to rotor thickness below discard limits\u003c\/li\u003e\n\u003cli\u003eResolving noise or vibration issues related to uneven rotor surfaces\u003c\/li\u003e\n\u003cli\u003eUpgrading to OEM-equivalent vented rotors for improved heat dissipation\u003c\/li\u003e\n\u003cli\u003eEnsuring proper fitment and compatibility with Audi S4 brake systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify rotor dimensions and part number 121.33087 before installation\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and replace if worn to ensure optimal rotor performance\u003c\/li\u003e\n\u003cli\u003eClean rotor surface to remove any protective coatings or debris prior to mounting\u003c\/li\u003e\n\u003cli\u003eTorque lug nuts to manufacturer specifications to avoid rotor warping\u003c\/li\u003e\n\u003cli\u003eCheck for proper alignment of the floating disc mounting to prevent uneven wear\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. While specific warranty details for part number 121.33087 should be confirmed with the distributor or installer, Centric generally provides coverage against defects in materials and workmanship to support long-term reliability on Audi S4 vehicles.\u003c\/p\u003e","brand":"Centric","offers":[{"title":"Default Title","offer_id":44566117417141,"sku":"BKNJ-121.33087","price":66.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12133087_Fro.jpg?v=1774638345","url":"https:\/\/www.partcatalog.com\/products\/centric-121-33087-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}