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Dynamite Friction 631-42017L 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 is engineered for reliable braking performance on Jeep CJ5, CJ7, and Scrambler models. Designed with vented construction and a rust-resistant zinc silver hat finish, this rotor balances durability and heat dissipation for consistent stopping power.
- Part Number: 631-42017L
- Compatible with Jeep CJ5, CJ7, and Scrambler
- Vented disc brake rotor with drilled and slotted surface
- Nominal thickness: 22 mm; discard thickness: 20.7 mm
- Rust-resistant zinc silver hat finish
- Directional brake surface for optimized performance
- 5 bolt holes with 16.5 mm diameter and 139.7 mm bolt circle diameter
- Overall diameter: 299 mm; height: 55.8 mm
Detailed Product Features and Specifications
This disc brake rotor features a vented design that improves heat dissipation during braking, reducing the risk of brake fade. The surface is both drilled and slotted, which helps to evacuate gases, dust, and water, maintaining consistent contact between the brake pad and rotor. The directional brake surface is engineered to optimize braking efficiency and performance on the road.
The rotor’s nominal thickness is 22 mm, with a discard thickness of 20.7 mm, ensuring a clear maintenance threshold for safety. The rotor’s hat is coated with a zinc silver finish to resist rust and corrosion, extending the rotor’s service life. With 5 bolt holes sized at 16.5 mm diameter and a bolt circle diameter of 139.7 mm, this rotor fits securely on the specified Jeep models.
About the DFC Brake Rotor - Drilled and Slotted - Silver Product Line
The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on rotors that combine drilled holes and slots for enhanced braking performance. This product line is designed to improve heat dissipation and maintain clean rotor surfaces, which is critical for vehicles like the Jeep CJ5, CJ7, and Scrambler that may encounter varied driving conditions. The silver zinc coating on the rotor hat adds corrosion resistance, making these rotors suitable for long-term use.
Common Applications and Problem Solving
- Replacement for worn or warped rotors on Jeep CJ5, CJ7, and Scrambler
- Improves braking response and reduces brake fade under heavy use
- Helps prevent rust and corrosion on brake components
- Addresses issues with brake noise and vibration caused by uneven rotor surfaces
- Maintains consistent braking performance in wet or dusty conditions
Installation Notes and Tips
- Ensure rotor thickness is above discard thickness (20.7 mm) before installation
- Clean mounting surface and check bolt hole alignment with 5-lug pattern (16.5 mm diameter)
- Torque lug nuts to manufacturer specifications for Jeep CJ5, CJ7, or Scrambler
- Inspect brake pads for wear and replace if necessary to maximize rotor performance
- Follow proper bedding-in procedures after installation for optimal braking
Quality Assurance and Warranty
Dynamite Friction manufactures the 631-42017L rotor to meet industry standards for durability and performance. The rust-resistant zinc silver coating and vented rotor design contribute to long service life. Warranty details should be confirmed with the product documentation or supplier, as they may vary by region or distributor.
This part fits 24 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1986 | Jeep | CJ7 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1985 | Jeep | CJ7 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1985 | Jeep | Scrambler | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1984 | Jeep | CJ7 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1984 | Jeep | Scrambler | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1983 | Jeep | CJ5 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1983 | Jeep | CJ7 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1983 | Jeep | Scrambler | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1982 | Jeep | CJ5 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1982 | Jeep | CJ7 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1982 | Jeep | Scrambler | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1981 | Jeep | CJ5 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1981 | Jeep | CJ7 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1981 | Jeep | Scrambler | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1980 | Jeep | CJ5 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1980 | Jeep | CJ7 | Front Left | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1979 | Jeep | CJ5 | Front Left | 2 Bolt Steering Knuckle; Rotor Only; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1979 | Jeep | CJ7 | Front Left | 2 Bolt Steering Knuckle; Rotor Only; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1978 | Jeep | CJ5 | Front Left | 2 Bolt Steering Knuckle; 11 inch; Rotor Only; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1978 | Jeep | CJ5 | Front Left | 2 Bolt Steering Knuckle; 10 inch Rear Drums; Rotor Only; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1978 | Jeep | CJ7 | Front Left | 2 Bolt Steering Knuckle; 11 inch; Rotor Only; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1978 | Jeep | CJ7 | Front Left | 2 Bolt Steering Knuckle; 10 inch Rear Drums; Rotor Only; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Jeep | CJ5 | Front Left | 2 Bolt Steering Knuckle; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Jeep | CJ7 | Front Left | 2 Bolt Steering Knuckle; DFC Brake Rotor - Drilled and Slotted - Silver |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.