{"product_id":"dynamite-friction-633-40121l-disc-brake-rotor-rear-left","title":"Dynamite Friction 633-40121L 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 633-40121L) is engineered for reliable braking performance on Ram 1500 and 1500 Classic models. Designed with a directional slotted and drilled surface, this rotor enhances heat dissipation and braking consistency under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Ram 1500 and 1500 Classic models\u003c\/li\u003e\n\u003cli\u003eDirectional drilled and slotted disc surface for improved brake cooling\u003c\/li\u003e\n\u003cli\u003eBlack zinc-coated hat finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 22 mm with a discard thickness of 20.4 mm\u003c\/li\u003e\n\u003cli\u003eSix bolt holes with 17 mm diameter and 139.7 mm bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 375 mm and height of 53.44 mm\u003c\/li\u003e\n\u003cli\u003eRust resistant coating to extend rotor life\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Dynamite Friction disc brake rotor features a directional surface type combining drilled holes and slots to help evacuate gases, dust, and water from the braking surface. The rotor’s nominal thickness is 22 mm, with a discard thickness of 20.4 mm, ensuring safe replacement intervals. The rotor’s hat is finished in zinc black, providing enhanced rust resistance, which is critical for maintaining rotor integrity over time. The rotor includes six bolt holes with a diameter of 17 mm and a bolt circle diameter of 139.7 mm, matching the factory specifications for Ram 1500 and 1500 Classic vehicles. The center hole diameter measures 78.42 mm, and the rotor height is 53.44 mm, ensuring proper fitment and alignment.\u003c\/p\u003e\u003ch2\u003eAbout the DFC Brake Rotor - Drilled and Slotted - Black Line\u003c\/h2\u003e\u003cp\u003eThe DFC Brake Rotor - Drilled and Slotted - Black product line by Dynamite Friction focuses on rotors designed to improve braking performance through enhanced heat dissipation and surface durability. The drilled and slotted design helps maintain consistent braking under heavy use, while the black zinc coating on the hat area provides corrosion resistance. This line is tailored for drivers who require reliable stopping power and rotor longevity in demanding driving conditions.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement rotor for worn or warped brake rotors on Ram 1500 and 1500 Classic\u003c\/li\u003e\n\u003cli\u003eImproves heat dissipation to reduce brake fade during heavy braking\u003c\/li\u003e\n\u003cli\u003eHelps prevent rust and corrosion buildup on rotor surfaces\u003c\/li\u003e\n\u003cli\u003eAddresses brake noise and vibration caused by uneven rotor wear\u003c\/li\u003e\n\u003cli\u003eMaintains braking performance in wet or dusty environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor thickness is above the discard thickness of 20.4 mm before installation. Clean the rotor surface to remove any protective coatings or contaminants prior to mounting. Verify bolt hole alignment with the vehicle’s hub using the six 17 mm diameter bolt holes and 139.7 mm bolt circle diameter. Proper torque specifications should be followed to avoid rotor warping. Directional rotors must be installed with the correct rotation direction to maintain optimal performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDynamite Friction manufactures this rotor to meet or exceed OEM specifications for fit and function on Ram 1500 and 1500 Classic models. The rust resistant coating and zinc black hat finish contribute to extended rotor life. Warranty information is available from Dynamite Friction and should be consulted for coverage details.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":51797411889333,"sku":"HBHR-633-40121L","price":143.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_63340121L_Fro.jpg?v=1774641957","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-633-40121l-disc-brake-rotor-rear-left","provider":"PartCatalog","version":"1.0","type":"link"}