{"product_id":"dynamite-friction-633-31106l-disc-brake-rotor-rear-left","title":"Dynamite Friction 633-31106L 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 - Black (part number 633-31106L) is engineered for BMW models including the 535i, 550i, 640i, 650i, and 7 Series 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 BMW 535i, 535i GT, 550i, 640i Gran Coupe, 650i xDrive, 740Li, and ActiveHybrid 7 models\u003c\/li\u003e\n\u003cli\u003ePart Number: 633-31106L\u003c\/li\u003e\n\u003cli\u003eVented rotor with drilled and slotted surface for improved cooling\u003c\/li\u003e\n\u003cli\u003eDirectional brake surface for optimized braking efficiency\u003c\/li\u003e\n\u003cli\u003eRust resistant zinc black hat finish and plain disc finish\u003c\/li\u003e\n\u003cli\u003e5 bolt holes with 16.6 mm diameter and 120 mm bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 23.8 mm and discard thickness of 22.4 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 345 mm and overall height of 69.1 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDFC Brake Rotor - Drilled and Slotted - Black Product Line\u003c\/h2\u003e\u003cp\u003eThe DFC Brake Rotor - Drilled and Slotted - Black line by Dynamite Friction focuses on rotors that combine drilled holes and slots with a corrosion-resistant black zinc finish on the hat. This design supports enhanced heat dissipation and brake pad cleaning, while the vented construction helps maintain consistent braking performance under demanding conditions. The directional surface pattern is engineered to optimize water and debris evacuation, making it suitable for BMW vehicles requiring reliable stopping power.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications and Features\u003c\/h2\u003e\u003cp\u003eThis disc brake rotor is vented to improve airflow and reduce heat buildup during braking. The rotor’s surface is both drilled and slotted, which aids in dissipating heat and gases generated by friction, reducing brake fade. The directional design ensures that the rotor is installed in the correct orientation for maximum efficiency. The zinc black coating on the hat provides rust resistance, extending the rotor’s service life. With a nominal thickness of 23.8 mm and a discard thickness of 22.4 mm, this rotor maintains structural integrity and safety standards. The 5-bolt hole pattern with a 120 mm bolt circle diameter matches the specified BMW models precisely.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement rotor for worn or warped brake discs on BMW 535i, 550i, 640i, 650i, and 7 Series models\u003c\/li\u003e\n\u003cli\u003eImproves heat dissipation to reduce brake fade during aggressive driving or heavy loads\u003c\/li\u003e\n\u003cli\u003eHelps prevent rust and corrosion on the rotor hat for longer service life\u003c\/li\u003e\n\u003cli\u003eDirectional drilled and slotted surface aids in removing brake dust and water for consistent braking\u003c\/li\u003e\n\u003cli\u003eRestores braking performance compromised by rotor surface damage or thickness wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor is installed with the directional surface facing the correct rotation direction as indicated by the manufacturer. Verify bolt hole alignment with the 5-lug pattern and 120 mm bolt circle diameter. Measure rotor thickness before installation to confirm it meets or exceeds the discard thickness of 22.4 mm. Clean the rotor surface of any protective coatings or oils before mounting to ensure proper pad contact. Use proper torque specifications for lug nuts to avoid rotor warping.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDynamite Friction manufactures this rotor to meet OEM specifications for fitment and performance on BMW vehicles. The rust-resistant zinc black finish on the hat and the vented rotor design contribute to durability and consistent braking. While no specific warranty information is provided, the rotor is engineered to maintain safety and reliability within the specified thickness limits and usage conditions.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":51797406482613,"sku":"HBHR-633-31106L","price":143.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_63331106L_Fro.jpg?v=1774641913","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-633-31106l-disc-brake-rotor-rear-left","provider":"PartCatalog","version":"1.0","type":"link"}