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Dynamite Friction 631-54140L Disc Brake Rotor - Front Left
Overview of the DFC Brake Rotor - Drilled and Slotted - Silver
The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-54140L) is engineered for reliable braking performance on select Ford and Mazda trucks. Designed specifically for models like the Ford Ranger and Mazda B-series trucks, this vented disc brake rotor offers enhanced heat dissipation and improved stopping power.
- Compatible with Ford Ranger, Mazda B2300, B3000, and B4000 models
- Directional drilled and slotted surface for efficient heat and gas dissipation
- Vented rotor design to reduce brake fade under heavy use
- Rust-resistant zinc silver hat finish for extended durability
- Nominal thickness of 26 mm with a discard thickness of 24.5 mm
- 5 bolt holes with 1/2-20 diameter and 114.3 mm bolt circle diameter
- Overall diameter of 286 mm and height of 57.7 mm
Product Line Details: DFC Brake Rotor - Drilled and Slotted - Silver
The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots on the braking surface. This design helps maintain consistent braking performance by allowing gases and debris to escape, reducing the risk of brake fade. The silver zinc coating on the rotor hat provides corrosion resistance, which is beneficial for vehicles exposed to varying weather conditions. This rotor line is tailored for drivers who require dependable braking components for their Ford and Mazda trucks.
Technical Specifications and Features
This disc brake rotor features a vented design that improves airflow to dissipate heat more effectively during braking. The directional drilled and slotted surface enhances pad bite and helps maintain clean contact between the rotor and brake pads. The rotor measures 286 mm in outside diameter with a height of 57.7 mm, fitting securely on vehicles with a 5-lug bolt pattern and a 114.3 mm bolt circle diameter. The zinc silver finish on the rotor hat offers rust resistance, extending the rotor's service life. The nominal thickness is 26 mm, with a discard thickness of 24.5 mm, ensuring safe replacement intervals.
Applications and Problem Solving
- Reduces brake fade during heavy braking or towing
- Improves heat dissipation for consistent braking performance
- Minimizes rust and corrosion on the rotor hat for longer durability
- Helps maintain clean braking surfaces by venting gases and debris
- Compatible with Ford Ranger and Mazda B2300, B3000, B4000 trucks requiring vented, drilled, and slotted rotors
Installation Notes and Tips
Ensure the rotor is installed on vehicles with a 5-lug bolt pattern and a 114.3 mm bolt circle diameter. Verify the rotor thickness before installation; replace if below the discard thickness of 24.5 mm. Properly torque lug nuts to manufacturer specifications to avoid rotor warping. It is recommended to inspect brake pads and hardware during rotor replacement for optimal braking system performance.
Quality Assurance
Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for fit and function. The rust-resistant zinc silver coating on the rotor hat helps protect against corrosion. While no specific warranty information is provided, adherence to discard thickness and proper installation ensures reliable and safe braking performance for Ford Ranger and Mazda B-series trucks.
| Brand | Dynamite Friction |
|---|---|
| Part Number | 631-54140L |
| Position | DFC Brake Rotor - Drilled and Slotted - Silver, Front Left |
| Discard Thickness | 24.5 |
| Nominal Thickness | 26 |
| Bolt Hole Diameter | 1/2-20 |
| Disc Finish | Plain |
| Hat Finish | Zinc silver |
| Rust Resistant Coating | Yes |
| Bolt Hole Quantity | 5 |
| Overall Height | 57.7 |
| Outside Diameter | 286 |
| Height | 57.7 |
| Surface Type | Slotted x drilled |
| Solid Or Vented Type Rotor | Vented |
| Stud/Lug Hole Quantity | 5 |
| Directional or Non-Directional Brake Surface | Directional |
| Bolt Circle Diameter | 114.3 |
| Stud/Lug Hole Circle Diameter | 114.3 |
This part fits 22 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 1997 | Ford | Ranger | 4WD | Front Left | Rear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1997 | Ford | Ranger | 4WD | Front Left | 9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1997 | Mazda | B3000 | 4WD | Front Left | 9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1997 | Mazda | B3000 | 4WD | Front Left | Rear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1997 | Mazda | B4000 | 4WD | Front Left | Rear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1997 | Mazda | B4000 | 4WD | Front Left | 9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1996 | Ford | Ranger | 4WD | Front Left | Rear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1996 | Ford | Ranger | 4WD | Front Left | 9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1996 | Mazda | B2300 | 4WD | Front Left | 9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1996 | Mazda | B2300 | 4WD | Front Left | Rear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1996 | Mazda | B3000 | 4WD | Front Left | 9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1996 | Mazda | B3000 | 4WD | Front Left | Rear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1996 | Mazda | B4000 | 4WD | Front Left | Rear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1996 | Mazda | B4000 | 4WD | Front Left | 9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1995 | Ford | Ranger | 4WD | Front Left | Rear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1995 | Ford | Ranger | 4WD | Front Left | 9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1995 | Mazda | B2300 | 4WD | Front Left | 9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1995 | Mazda | B2300 | 4WD | Front Left | Rear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1995 | Mazda | B3000 | 4WD | Front Left | 9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1995 | Mazda | B3000 | 4WD | Front Left | Rear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1995 | Mazda | B4000 | 4WD | Front Left | Rear brake drum with 10 inch diameter; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1995 | Mazda | B4000 | 4WD | Front Left | 9 inch Rear Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.