{"product_id":"dynamite-friction-631-31042r-disc-brake-rotor-rear-right","title":"Dynamite Friction 631-31042R Disc Brake Rotor - Rear Right","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 631-31042R) is engineered for BMW 320i, 323Ci, 323i, 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\u003eCompatible with BMW 320i, 323Ci, 323i, and 328i\u003c\/li\u003e\n\u003cli\u003ePart number: 631-31042R\u003c\/li\u003e\n\u003cli\u003eVented disc brake rotor with drilled and slotted surface\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 19 mm; discard thickness: 17.4 mm\u003c\/li\u003e\n\u003cli\u003eOverall height and rotor height: 60 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 276 mm\u003c\/li\u003e\n\u003cli\u003eDirectional brake surface for optimized performance\u003c\/li\u003e\n\u003cli\u003eRust resistant zinc silver hat finish with plain disc finish\u003c\/li\u003e\n\u003cli\u003e5 bolt holes with 14.6 mm diameter and 120 mm bolt circle 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 is designed to provide reliable braking performance with enhanced heat dissipation and reduced brake fade. The drilled and slotted surface improves water and debris evacuation, while the vented rotor design helps maintain optimal operating temperatures. The zinc silver coating on the rotor hat offers corrosion resistance, extending the rotor's service life on BMW 320i, 323Ci, 323i, and 328i vehicles.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications and Features\u003c\/h2\u003e\u003cp\u003eThis rotor features a nominal thickness of 19 mm and a discard thickness of 17.4 mm, ensuring clear service limits for safe replacement. The rotor's outside diameter measures 276 mm, with an overall height of 60 mm. It includes five bolt holes with a diameter of 14.6 mm arranged on a 120 mm bolt circle diameter, matching the stud\/lug hole pattern of the specified BMW models. The rotor's center hole diameter is 75 mm, and the surface is directional with a slotted and drilled design to optimize braking efficiency.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement rotor for worn or warped brake rotors on BMW 320i, 323Ci, 323i, and 328i\u003c\/li\u003e\n\u003cli\u003eImproves heat dissipation to reduce brake fade during aggressive driving or heavy braking\u003c\/li\u003e\n\u003cli\u003eHelps maintain consistent braking performance in wet or debris-prone conditions\u003c\/li\u003e\n\u003cli\u003eAddresses rotor corrosion issues with rust-resistant zinc silver coating\u003c\/li\u003e\n\u003cli\u003eRestores proper braking surface for improved pedal feel and stopping power\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor is installed on compatible BMW models (320i, 323Ci, 323i, 328i) matching the bolt pattern and dimensions. Clean the hub surface before installation to prevent runout. Torque lug nuts to manufacturer specifications and inspect brake pads for wear when replacing rotors. The directional slotted and drilled surface requires correct orientation during installation for optimal performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDynamite Friction manufactures the 631-31042R rotor to meet OEM specifications for fit and function. The rust-resistant coating and vented design contribute to durability and consistent braking performance. Please refer to Dynamite Friction's warranty policy for coverage details.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":51794114216117,"sku":"HBHR-631-31042R","price":78.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_63131042R_Fro.jpg?v=1774641354","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-631-31042r-disc-brake-rotor-rear-right","provider":"PartCatalog","version":"1.0","type":"link"}