{"product_id":"stoptech-127-34078l-disc-brake-rotor","title":"Stoptech 127.34078L Disc Brake Rotor - Rear Left","description":"\u003ch2\u003eOverview of StopTech Sport Cross-Drilled \u0026amp; Slotted Disc Brake Rotors\u003c\/h2\u003e\u003cp\u003eThe StopTech Sport Cross-Drilled \u0026amp; Slotted Disc Brake Rotor (Part Number 127.34078L) is engineered for BMW 323i, 325i, and 328i models. Designed to enhance braking performance, this vented rotor features a slotted and drilled surface to improve heat dissipation and maintain consistent stopping power under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with BMW 323i, 325i, and 328i models\u003c\/li\u003e\n\u003cli\u003ePart Number: 127.34078L\u003c\/li\u003e\n\u003cli\u003eVented disc brake rotor with cross-drilled and slotted surface\u003c\/li\u003e\n\u003cli\u003eCoated hat finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eOverall diameter: 299.8 mm (11.803 inches)\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 20.0 mm (0.787 inches)\u003c\/li\u003e\n\u003cli\u003eDiscard thickness: 18.4 mm (0.724 inches)\u003c\/li\u003e\n\u003cli\u003e5 lug holes with 120 mm bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eWeight approximately 6.25 kg (13.75 lbs)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis StopTech Sport Cross-Drilled \u0026amp; Slotted Disc Brake Rotor is specifically designed for select BMW models including the 323i, 325i, and 328i. The rotor features a vented design with straight vanes to optimize airflow and reduce heat buildup during braking. The cross-drilled and slotted surface helps to evacuate gases, dust, and water, improving brake pad contact and reducing the risk of brake fade. The coated hat finish provides additional protection against corrosion, extending the rotor's service life.\u003c\/p\u003e\u003cp\u003eWith an outside diameter of 299.8 mm and a nominal thickness of 20 mm, this rotor meets OEM specifications for fit and function. The 5-lug hole pattern with a 120 mm bolt circle diameter ensures proper mounting on compatible BMW hubs. The rotor’s overall height is 66.2 mm, and it includes a center hole diameter of 75 mm for precise alignment. Note that this rotor does not include an ABS tone ring or bearings.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eImproves braking performance for BMW 323i, 325i, and 328i vehicles\u003c\/li\u003e\n\u003cli\u003eReduces brake fade during aggressive driving or track use\u003c\/li\u003e\n\u003cli\u003eHelps prevent rotor warping caused by excessive heat\u003c\/li\u003e\n\u003cli\u003eEnhances pad bite and braking consistency in wet conditions\u003c\/li\u003e\n\u003cli\u003eAddresses corrosion issues with coated hat finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with BMW 323i, 325i, and 328i before installation\u003c\/li\u003e\n\u003cli\u003eCheck rotor thickness and discard limits (nominal thickness 20.0 mm, discard thickness 18.4 mm)\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications for the 5 lug bolts on a 120 mm bolt circle\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and replace if worn to optimize rotor performance\u003c\/li\u003e\n\u003cli\u003eClean rotor surface before installation to remove any protective coatings or debris\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eStopTech Sport Cross-Drilled \u0026amp; Slotted Disc Brake Rotors are manufactured to meet or exceed OEM standards for durability and performance. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"Stoptech","offers":[{"title":"Default Title","offer_id":44572315287733,"sku":"FLMN-127.34078L","price":159.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12734078L_Fro.jpg?v=1774639217","url":"https:\/\/www.partcatalog.com\/products\/stoptech-127-34078l-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}