{"product_id":"stoptech-128-34049l-disc-brake-rotor","title":"Stoptech 128.34049L Disc Brake Rotor - Rear Left","description":"\u003ch2\u003eOverview of StopTech Sport Cross-Drilled Disc Brake Rotors\u003c\/h2\u003e\u003cp\u003eThe StopTech Sport Cross-Drilled Disc Brake Rotor (Part Number 128.34049L) is engineered for BMW 323i, 325Ci, 325i, 328Ci, and 328i models. Designed to enhance braking performance, this vented rotor features a cross-drilled surface for improved heat dissipation and consistent stopping power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCross-drilled surface type for enhanced cooling\u003c\/li\u003e\n\u003cli\u003eVented rotor design to reduce brake fade\u003c\/li\u003e\n\u003cli\u003eCoated hat finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eCompatible with BMW 323i, 325Ci, 325i, 328Ci, and 328i\u003c\/li\u003e\n\u003cli\u003ePart Number: 128.34049L\u003c\/li\u003e\n\u003cli\u003eOverall diameter: 294 mm (11.575 inches)\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 19.000 mm (0.748 inches)\u003c\/li\u003e\n\u003cli\u003eMounting bolt hole circle diameter: 120 mm (4.724 inches) with 5 lug holes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe StopTech Sport Cross-Drilled Disc Brake Rotors are designed to meet the demands of BMW drivers seeking reliable braking performance. This rotor features a vented design with straight vanes that promote airflow, helping to dissipate heat during aggressive driving or heavy braking conditions. The cross-drilled surface improves water and gas evacuation, reducing the risk of brake fade and maintaining consistent pedal feel.\u003c\/p\u003e\u003cp\u003eWith a coated hat finish, the rotor resists corrosion, extending its service life. The rotor’s dimensions include an outside diameter of 294 mm (11.575 inches), an overall height of 59.7 mm (2.350 inches), and a nominal thickness of 19.000 mm (0.748 inches). It mounts using a 5-lug pattern with a 120 mm (4.724 inches) bolt circle diameter, compatible with the specified BMW models. The center hole diameter measures 75 mm (2.953 inches), ensuring proper fitment.\u003c\/p\u003e\u003ch2\u003eAbout StopTech Sport Cross-Drilled Disc Brake Rotors\u003c\/h2\u003e\u003cp\u003eThe StopTech Sport Cross-Drilled Disc Brake Rotors line is designed for drivers who require enhanced braking performance without compromising durability. The cross-drilled design aids in heat dissipation and gas release, which is critical for maintaining brake efficiency under demanding conditions. This product line balances performance and longevity, making it suitable for both street and light track use on compatible BMW vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eImproves brake cooling to reduce fade during spirited driving\u003c\/li\u003e\n\u003cli\u003eEnhances stopping power for BMW 323i, 325Ci, 325i, 328Ci, and 328i models\u003c\/li\u003e\n\u003cli\u003eReduces brake noise and vibration associated with worn rotors\u003c\/li\u003e\n\u003cli\u003ePrevents corrosion with coated hat finish for longer rotor life\u003c\/li\u003e\n\u003cli\u003eRestores proper rotor thickness and surface for consistent braking\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with BMW 323i, 325Ci, 325i, 328Ci, and 328i before installation\u003c\/li\u003e\n\u003cli\u003eCheck rotor thickness and discard thickness limits: nominal thickness 19.000 mm, discard thickness 17.400 mm\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications for the 5-lug mounting pattern with 120 mm bolt circle diameter\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 before installation to remove any protective coatings or residues\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eStopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet strict quality standards for fitment and performance. While specific warranty details are not provided here, StopTech products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Always verify warranty terms with the product documentation or authorized sources.\u003c\/p\u003e","brand":"Stoptech","offers":[{"title":"Default Title","offer_id":44573326213301,"sku":"FLMN-128.34049L","price":166.63,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12834049L_Fro.jpg?v=1774639404","url":"https:\/\/www.partcatalog.com\/products\/stoptech-128-34049l-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}