{"product_id":"centric-121-34049-disc-brake-rotor","title":"Centric 121.34049 Disc Brake Rotor - Rear","description":"\u003ch2\u003eOverview of Centric C-TEK Standard Disc Brake Rotor 121.34049\u003c\/h2\u003e\u003cp\u003eThe Centric C-TEK Standard Disc Brake Rotor 121.34049 is engineered for reliable braking performance on select BMW models. Designed specifically for BMW 323i, 325Ci, 325i, 328Ci, and 328i vehicles, this vented rotor ensures consistent heat dissipation and smooth braking response.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with BMW 323i, 325Ci, 325i, 328Ci, and 328i\u003c\/li\u003e\n\u003cli\u003ePart number 121.34049 for precise identification\u003c\/li\u003e\n\u003cli\u003eVented disc design for improved cooling\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 0.748 inches (19.000 mm)\u003c\/li\u003e\n\u003cli\u003eDiscard thickness at 0.685 inches (17.400 mm)\u003c\/li\u003e\n\u003cli\u003eOverall height of 2.350 inches (59.700 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter measuring 11.575 inches (294.000 mm)\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter of 2.953 inches (75.000 mm)\u003c\/li\u003e\n\u003cli\u003eMounting bolt hole circle diameter of 120.000 mm (4.724 inches) with 5 lug holes\u003c\/li\u003e\n\u003cli\u003eSmooth surface type for consistent pad contact\u003c\/li\u003e\n\u003cli\u003eFloating disc mounting with one miscellaneous hole and straight vane style\u003c\/li\u003e\n\u003cli\u003eWeight approximately 13.83 lbs (6.29 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 offers a balance of quality and value for everyday driving conditions. These rotors are designed to meet or exceed OEM specifications, providing dependable braking performance without additional features like ABS tone rings or bearings. The vented rotor design in this line helps maintain optimal operating temperatures, reducing the risk of brake fade during normal use.\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 heat dissipation, which is critical for maintaining braking efficiency on BMW 3 Series models such as the 323i and 328i. The rotor’s nominal thickness of 0.748 inches (19.000 mm) ensures durability, while the discard thickness of 0.685 inches (17.400 mm) indicates the minimum safe thickness before replacement is necessary. The smooth surface type promotes even pad wear and consistent braking feel. With a center hole diameter of 2.953 inches (75.000 mm) and a 5-lug hole pattern on a 120 mm bolt circle, this rotor fits securely on compatible BMW hubs. The floating disc mounting system allows for slight movement to reduce stress and improve rotor longevity.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors on BMW 323i, 325Ci, 325i, 328Ci, and 328i\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 or undersized 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 thickness 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 ensure optimal rotor performance\u003c\/li\u003e\n\u003cli\u003eCheck for compatibility with vehicle ABS systems; 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 C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. While specific warranty details 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 related to part number 121.34049.\u003c\/p\u003e","brand":"Centric","offers":[{"title":"Default Title","offer_id":44566135865525,"sku":"BKNJ-121.34049","price":44.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12134049_Fro.jpg?v=1774638368","url":"https:\/\/www.partcatalog.com\/products\/centric-121-34049-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}