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Dynamite Friction 631-40118L Disc Brake Rotor - Rear Left
Overview of Dynamite Friction DFC Brake Rotor
The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-40118L) is engineered for reliable braking performance on Dodge Ram 2500 and Ram 3500 models. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance heat dissipation and maintain consistent stopping power under demanding conditions.
- Compatible with Dodge Ram 2500, Ram 3500, and Ram 4000 models
- Directional slotted and drilled surface for improved brake pad bite and heat management
- Vented rotor design to reduce brake fade during heavy use
- Zinc silver hat finish with rust-resistant coating for extended durability
- Nominal thickness of 34 mm with discard thickness at 32.4 mm
- Eight bolt holes with 16.8 mm diameter and 165 mm bolt circle diameter
- Overall rotor diameter of 358 mm and height of 125 mm
Details on the DFC Brake Rotor - Drilled and Slotted - Silver Line
The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on rotors that combine drilled holes and precision slots to optimize braking efficiency. This product line is designed to provide enhanced cooling and debris removal from the rotor surface, which helps maintain consistent brake performance. The silver zinc coating on the rotor hat offers corrosion resistance, making it suitable for trucks like the Dodge Ram 2500 and Ram 3500 that often operate in harsh environments.
Technical Specifications and Features
This disc brake rotor is vented to allow air flow between the rotor surfaces, reducing heat buildup during braking. The directional slotted and drilled surface improves pad contact and helps evacuate gases and dust, which can otherwise reduce braking effectiveness. The rotor measures 358 mm in outside diameter with a height of 125 mm, fitting the specified Dodge Ram models precisely. The zinc silver finish on the hat and rust-resistant coating extend the rotor's service life by protecting against corrosion.
Applications and Problem Solving
- Replacement rotor for worn or warped brake rotors on Dodge Ram 2500 and Ram 3500 trucks
- Improves heat dissipation to reduce brake fade during towing or heavy hauling
- Helps maintain consistent braking performance in wet or dusty conditions
- Addresses rotor surface glazing and brake pad chatter issues
- Prevents premature rotor corrosion in environments exposed to moisture and road salt
Installation Notes and Tips
Ensure the rotor surface is clean and free of any protective coatings before installation. Verify the rotor thickness is above the discard thickness of 32.4 mm to maintain safe braking performance. Use the correct torque specifications for the eight 16.8 mm bolt holes on the 165 mm bolt circle diameter. This rotor is directional; install with the correct orientation to optimize slot and drill pattern effectiveness.
Quality Assurance and Warranty
Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for Dodge Ram 2500 and Ram 3500 vehicles. The rust-resistant coating and zinc silver hat finish contribute to long-term durability. Please refer to Dynamite Friction's warranty policy for specific coverage details related to the 631-40118L part number.
| Brand | Dynamite Friction |
|---|---|
| Part Number | 631-40118L |
| Position | DFC Brake Rotor - Drilled and Slotted - Silver, Rear Left |
| Discard Thickness | 32.4 |
| Nominal Thickness | 34 |
| Bolt Hole Diameter | 16.8 |
| Disc Finish | Plain |
| Hat Finish | Zinc silver |
| Rust Resistant Coating | Yes |
| Bolt Hole Quantity | 8 |
| Overall Height | 125 |
| Outside Diameter | 358 |
| Height | 125 |
| Surface Type | Slotted x drilled |
| Solid Or Vented Type Rotor | Vented |
| Center Hole Diameter | 123 |
| Stud/Lug Hole Quantity | 8 |
| Stud/Lug Hole Diameter | 16.8 |
| Directional or Non-Directional Brake Surface | Directional |
| Bolt Circle Diameter | 165 |
| Stud/Lug Hole Circle Diameter | 165 |
This part fits 50 vehicles. Search below:
| Year | Make | Model | Fuel Type | Position | Notes |
|---|---|---|---|---|---|
| 2025 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2025 | Ram | 3500 | DIESEL | Rear Left | 11.5 inch Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2024 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2024 | Ram | 3500 | DIESEL | Rear Left | 11.5 inch Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2023 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2023 | Ram | 3500 | DIESEL | Rear Left | 11.5 inch Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2022 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2022 | Ram | 3500 | DIESEL | Rear Left | SRW; Standard Output Transmission; 11.5" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2022 | Ram | 3500 | DIESEL | Rear Left | SRW; High Output HD Transmission; 12" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2022 | Ram | 3500 | GAS | Rear Left | Brake Hydraulic Hose: SRW; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2021 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2021 | Ram | 3500 | DIESEL | Rear Left | SRW; Standard Output Transmission; 11.5" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2021 | Ram | 3500 | DIESEL | Rear Left | SRW; High Output HD Transmission; 12" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2021 | Ram | 3500 | GAS | Rear Left | Brake Hydraulic Hose: SRW; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2020 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2020 | Ram | 3500 | DIESEL | Rear Left | SRW; Standard Output Transmission; 11.5" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2020 | Ram | 3500 | DIESEL | Rear Left | SRW; High Output HD Transmission; 12" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2020 | Ram | 3500 | GAS | Rear Left | Brake Hydraulic Hose: SRW; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2019 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2019 | Ram | 3500 | DIESEL | Rear Left | SRW; Standard Output Transmission; 11.5" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2019 | Ram | 3500 | DIESEL | Rear Left | SRW; High Output HD Transmission; 12" Rear Axle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2019 | Ram | 3500 | GAS | Rear Left | Brake Hydraulic Hose: SRW; DFC Brake Rotor - Drilled and Slotted - Silver |
| 2018 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2018 | Ram | 3500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2018 | Ram | 4000 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2017 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2017 | Ram | 3500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2017 | Ram | 4000 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2016 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2016 | Ram | 3500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2016 | Ram | 4000 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2015 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2015 | Ram | 3500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2015 | Ram | 4000 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2014 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2014 | Ram | 3500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2014 | Ram | 4000 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2013 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2013 | Ram | 3500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2013 | Ram | 4000 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2012 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2012 | Ram | 3500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2012 | Ram | 4000 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2011 | Ram | 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2011 | Ram | 3500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2011 | Ram | 4000 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2010 | Dodge | Ram 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2010 | Dodge | Ram 3500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2009 | Dodge | Ram 2500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver | |
| 2009 | Dodge | Ram 3500 | Rear Left | DFC Brake Rotor - Drilled and Slotted - Silver |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.