{"product_id":"dynamite-friction-631-31047l-disc-brake-rotor-rear-left","title":"Dynamite Friction 631-31047L Disc Brake Rotor - Rear Left","description":"\u003ch2\u003eOverview of Dynamite Friction DFC Brake Rotor\u003c\/h2\u003e\u003cp\u003eThe Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31047L) is engineered for BMW 323i, 325Ci, 325i, 328Ci, and 328i models. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNominal thickness: 19 mm with a discard thickness of 17.4 mm\u003c\/li\u003e\n\u003cli\u003eVented rotor design for improved cooling\u003c\/li\u003e\n\u003cli\u003eDirectional slotted and drilled surface for debris removal and consistent braking\u003c\/li\u003e\n\u003cli\u003eRust-resistant zinc silver hat finish\u003c\/li\u003e\n\u003cli\u003e5 bolt holes with 14.6 mm diameter and 120 mm bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eOverall diameter of 294 mm and height of 59.7 mm\u003c\/li\u003e\n\u003cli\u003ePlain disc finish with a 75 mm center hole diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetails on the DFC Brake Rotor - Drilled and Slotted - Silver Line\u003c\/h2\u003e\u003cp\u003eThe DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots to improve brake pad bite and reduce heat buildup. The silver zinc coating on the rotor hat provides corrosion resistance, extending rotor life. This product line is designed to meet the demands of performance-oriented BMW vehicles, including the 3 Series models listed.\u003c\/p\u003e\u003ch2\u003eProduct Specifications and Features\u003c\/h2\u003e\u003cp\u003eThis disc brake rotor is vented to allow air circulation between the rotor surfaces, which helps maintain optimal operating temperatures during braking. The directional slotted and drilled surface improves water and gas evacuation, reducing brake fade and maintaining consistent stopping power. The rotor’s nominal thickness of 19 mm ensures durability, while the discard thickness of 17.4 mm indicates when replacement is necessary for safety. The zinc silver hat finish offers rust resistance, protecting the rotor’s core components from corrosion.\u003c\/p\u003e\u003ch2\u003eCompatible BMW Models and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCompatible with BMW 323i, 325Ci, 325i, 328Ci, and 328i models\u003c\/li\u003e\n\u003cli\u003eDesigned for use as a direct replacement disc brake rotor\u003c\/li\u003e\n\u003cli\u003eIdeal for addressing issues such as brake fade, uneven rotor wear, and reduced braking efficiency\u003c\/li\u003e\n\u003cli\u003eSuitable for drivers seeking improved brake cooling and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor surface is clean and free of contaminants before installation. Verify the bolt hole pattern matches the vehicle’s hub (5 holes, 14.6 mm diameter, 120 mm bolt circle). Use proper torque specifications for lug nuts to avoid rotor warping. It is recommended to replace brake pads when installing new rotors to ensure optimal braking performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDynamite Friction manufactures this rotor to meet OEM specifications for fit and function. The rust-resistant coating and vented design contribute to long service life. Please consult product documentation or the manufacturer for specific warranty details related to part number 631-31047L.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":51794114478261,"sku":"HBHR-631-31047L","price":83.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_63131047L_Fro.jpg?v=1774641357","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-631-31047l-disc-brake-rotor-rear-left","provider":"PartCatalog","version":"1.0","type":"link"}