{"product_id":"dynamite-friction-631-31109r-disc-brake-rotor","title":"Dynamite Friction 631-31109R 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 631-31109R) is engineered for BMW models including the 328i, 330i, 335i, 340i, 428i, 430i, 435i, 440i, and ActiveHybrid 3 variants. 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 multiple BMW models such as 328i xDrive, 335i GT xDrive, 430i Gran Coupe, and 440i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003eVented rotor design with drilled and slotted surface for improved cooling and debris removal\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 20 mm and discard thickness of 18.4 mm for reliable wear limits\u003c\/li\u003e\n\u003cli\u003eZinc silver hat finish with rust-resistant coating to reduce corrosion\u003c\/li\u003e\n\u003cli\u003e5 bolt holes with 16.8 mm diameter and 120 mm bolt circle diameter for precise fitment\u003c\/li\u003e\n\u003cli\u003eOverall diameter of 330 mm and height of 66.4 mm for exact OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction is designed to meet the specific braking requirements of various BMW models. Its vented rotor construction allows for efficient heat dissipation during braking, reducing the risk of brake fade under demanding conditions. The rotor surface is both drilled and slotted, which helps to evacuate gases, dust, and water, maintaining consistent brake pad contact and improving overall stopping power.\u003c\/p\u003e\u003cp\u003eFinished with a zinc silver coating on the hat and a rust-resistant layer on the rotor surface, this part offers enhanced durability against corrosion. The rotor’s directional design ensures optimal performance when installed correctly, and the precise bolt hole pattern (5 holes, 16.8 mm diameter, 120 mm bolt circle) guarantees a secure fit 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 that combine functional design with corrosion resistance. This product line emphasizes vented rotors with directional, slotted, and drilled surfaces to improve braking efficiency and rotor longevity. The silver zinc finish on the hat and rust-resistant coating on the disc surface are standard features that help maintain rotor integrity over time.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors on BMW 328i, 335i, 430i, and 440i models\u003c\/li\u003e\n\u003cli\u003eImproves heat dissipation to reduce brake fade during aggressive driving or towing\u003c\/li\u003e\n\u003cli\u003eHelps eliminate brake noise and vibration caused by uneven rotor surfaces\u003c\/li\u003e\n\u003cli\u003ePrevents rust and corrosion that can lead to premature rotor failure\u003c\/li\u003e\n\u003cli\u003eMaintains consistent braking performance in wet or dusty conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure rotor is installed with the directional surface facing the correct rotation direction\u003c\/li\u003e\n\u003cli\u003eCheck that the bolt hole pattern matches your vehicle’s hub (5 holes, 120 mm bolt circle)\u003c\/li\u003e\n\u003cli\u003eMeasure rotor thickness before installation; replace if below discard thickness of 18.4 mm\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications for lug nuts to avoid rotor warping\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and calipers during installation for optimal braking system performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDynamite Friction manufactures the 631-31109R rotor to meet or exceed OEM specifications for fit, form, and function. The rust-resistant coating and zinc silver hat finish contribute to the rotor’s durability. While specific warranty details are not provided, Dynamite Friction products typically undergo rigorous quality control to ensure reliable performance on BMW vehicles including the 328i, 335i, and 440i series.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":43389621633205,"sku":"HBHR-631-31109R","price":90.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_63131109R_Fro.jpg?v=1774634399","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-631-31109r-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}