{"product_id":"centric-121-34021-disc-brake-rotor","title":"Centric 121.34021 Disc Brake Rotor - Front","description":"\u003ch2\u003eOverview of Centric C-TEK Standard Disc Brake Rotor 121.34021\u003c\/h2\u003e\u003cp\u003eThe Centric C-TEK Standard Disc Brake Rotor 121.34021 is engineered for reliable braking performance on select BMW models. Designed to meet OEM specifications, this vented rotor provides consistent stopping power and durability for vehicles like the BMW 540i, 735i, 735iL, 740i, 740iL, and 750iL.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with BMW 540i, 735i, 735iL, 740i, 740iL, and 750iL\u003c\/li\u003e\n\u003cli\u003ePart number 121.34021 for precise fitment\u003c\/li\u003e\n\u003cli\u003eVented disc design for improved heat dissipation\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 1.102 inches (28.000 mm)\u003c\/li\u003e\n\u003cli\u003eDiscard thickness at 1.039 inches (26.400 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 11.890 inches (302.000 mm)\u003c\/li\u003e\n\u003cli\u003eOverall height of 2.996 inches (76.100 mm)\u003c\/li\u003e\n\u003cli\u003eFloating disc mounting with straight vane style\u003c\/li\u003e\n\u003cli\u003e5 lug holes with 0.591 inch (15.000 mm) diameter\u003c\/li\u003e\n\u003cli\u003eSmooth surface type for consistent pad contact\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 dependable braking components that meet or exceed OEM standards. This product line focuses on delivering rotors with precise dimensions and quality materials to ensure proper fit and function. The 121.34021 rotor exemplifies this approach with its vented design and exacting specifications tailored for BMW vehicles.\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 airflow and reduce heat buildup during braking. The rotor’s nominal thickness of 1.102 inches (28.000 mm) ensures structural integrity, while the discard thickness of 1.039 inches (26.400 mm) indicates when replacement is necessary to maintain safe braking performance. The rotor measures 11.890 inches (302.000 mm) in outside diameter and has an overall height of 2.996 inches (76.100 mm), matching OEM dimensions for a precise fit on compatible BMW models. The floating disc mounting and smooth surface type promote even pad wear and consistent braking feel. This rotor includes 5 lug holes with a diameter of 0.591 inches (15.000 mm) and a mounting bolt hole circle diameter of 4.724 inches (120.000 mm), ensuring compatibility with the specified vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors on BMW 540i, 735i, 735iL, 740i, 740iL, and 750iL\u003c\/li\u003e\n\u003cli\u003eAddresses brake pulsation caused by uneven rotor surfaces\u003c\/li\u003e\n\u003cli\u003eImproves heat dissipation to reduce brake fade during extended use\u003c\/li\u003e\n\u003cli\u003eRestores proper rotor thickness for safe braking performance\u003c\/li\u003e\n\u003cli\u003eEliminates noise and vibration related to damaged rotors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVerify rotor thickness before installation to ensure it meets discard specifications\u003c\/li\u003e\n\u003cli\u003eClean rotor surface and hub mounting area to prevent uneven contact\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications for lug nuts to avoid rotor warping\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and replace if worn to optimize braking performance\u003c\/li\u003e\n\u003cli\u003eCheck for ABS sensor clearance as this rotor does not include an ABS tone ring\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 durability and consistent performance. While specific warranty details for part number 121.34021 are not provided here, Centric typically offers coverage against defects in materials and workmanship. It is recommended to consult product documentation or the manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"Centric","offers":[{"title":"Default Title","offer_id":44566130622645,"sku":"BKNJ-121.34021","price":60.38,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12134021_Fro.jpg?v=1774638362","url":"https:\/\/www.partcatalog.com\/products\/centric-121-34021-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}