{"product_id":"dynamite-friction-631-31017l-disc-brake-rotor","title":"Dynamite Friction 631-31017L Disc Brake Rotor - Front Left","description":"\u003ch2\u003eOverview of the DFC Brake Rotor - Drilled and Slotted - Silver\u003c\/h2\u003e\u003cp\u003eThe Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31017L) is engineered for reliable braking performance on select BMW models. Designed with vented construction and a directional surface, this rotor supports efficient heat dissipation and consistent stopping power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with BMW 318i, 318is, 325e, 325es, 325i, 325is, and 325iX models\u003c\/li\u003e\n\u003cli\u003eVented disc brake rotor with drilled and slotted surface for improved cooling\u003c\/li\u003e\n\u003cli\u003eDirectional brake surface enhances water and debris evacuation\u003c\/li\u003e\n\u003cli\u003eRust-resistant zinc silver hat finish for extended durability\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 22 mm with discard thickness at 20.4 mm\u003c\/li\u003e\n\u003cli\u003eFour bolt holes with 15 mm diameter and 100 mm bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eOverall rotor diameter of 260 mm and height of 35.2 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction features a vented design that helps reduce brake fade by allowing air to circulate through the rotor during operation. The drilled and slotted surface improves braking performance by facilitating heat dissipation and removing brake dust and moisture. The directional surface pattern is optimized to channel water and debris away from the contact area, maintaining consistent friction under various driving conditions.\u003c\/p\u003e\u003cp\u003eThe rotor’s zinc silver coating on the hat area provides corrosion resistance, helping to maintain structural integrity and appearance over time. With a nominal thickness of 22 mm and a discard thickness of 20.4 mm, this rotor meets precise specifications for safe and effective braking. The 4-bolt hole configuration with a 100 mm bolt circle diameter ensures proper fitment on compatible BMW models.\u003c\/p\u003e\u003ch2\u003eDFC Brake Rotor - Drilled and Slotted - Silver Product Line\u003c\/h2\u003e\u003cp\u003eThe DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on delivering rotors with enhanced cooling and debris management features. This product line combines drilled holes and slots with a vented rotor design to improve thermal performance and braking consistency. The silver zinc coating on the rotor hat adds rust resistance, making it suitable for vehicles exposed to varying weather conditions. This rotor line is tailored for drivers seeking reliable replacement parts for their BMW 3 Series models.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors on BMW 318i, 318is, 325e, 325es, 325i, 325is, and 325iX\u003c\/li\u003e\n\u003cli\u003eImproves heat dissipation to reduce brake fade during extended braking\u003c\/li\u003e\n\u003cli\u003eHelps eliminate brake noise caused by debris and moisture buildup\u003c\/li\u003e\n\u003cli\u003eAddresses rotor corrosion issues with rust-resistant coating\u003c\/li\u003e\n\u003cli\u003eRestores braking performance compromised by rotor surface damage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure rotor thickness is above discard thickness (20.4 mm) before installation\u003c\/li\u003e\n\u003cli\u003eClean mounting surface and hub to prevent rotor runout\u003c\/li\u003e\n\u003cli\u003eTorque bolts to manufacturer specifications for secure fitment\u003c\/li\u003e\n\u003cli\u003eCheck compatibility with BMW 318i, 318is, 325e, 325es, 325i, 325is, and 325iX models\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and replace if worn to optimize rotor performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDynamite Friction manufactures the 631-31017L rotor to meet industry standards for durability and performance. The rust-resistant zinc silver finish and vented rotor design contribute to long service life. While specific warranty details are not provided, this rotor is produced under quality-controlled conditions to ensure consistent fit and function for compatible BMW vehicles.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":43389621141685,"sku":"HBHR-631-31017L","price":61.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_63131017L_Fro.jpg?v=1774634394","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-631-31017l-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}