
Dynamite Friction 624-31194D Disc Brake Rotor - Rear Left
Overview of the DFC GEOSPEC Coated Rotor - Drilled
The Dynamite Friction DFC GEOSPEC Coated Rotor - Drilled (part number 624-31194D) is engineered for BMW M2, M3, and M4 models. Designed to provide reliable braking performance, this disc brake rotor features a directional, X-drilled surface and a rust-resistant coating to enhance durability and heat dissipation.
- Compatible with BMW M2, M3, and M4 models
- Directional X-drilled disc surface for improved heat management
- Rust-resistant Geospec silver grey coating on the hat
- Plain disc finish with 370 mm outside diameter
- Minimum discard thickness of 22.4 mm for safety and longevity
DFC GEOSPEC Coated Rotor - Drilled Product Line Details
The DFC GEOSPEC Coated Rotor - Drilled line by Dynamite Friction focuses on rotors with specialized coatings and drilled surfaces to optimize braking efficiency and corrosion resistance. This product line is designed to meet the demands of performance-oriented vehicles like the BMW M2, M3, and M4, offering a balance of durability and heat dissipation through its directional drilled design and protective coating.
Technical Specifications and Features
This disc brake rotor features a 370 mm outside diameter and a plain disc finish that supports consistent braking performance. The directional X-drilled surface pattern helps to reduce heat buildup and improve water dispersion during wet conditions. The rotor hat is finished in Geospec silver grey, providing a rust-resistant coating that extends the rotor’s service life. With a discard thickness of 22.4 mm, this rotor maintains safety standards by indicating when replacement is necessary.
Applications and Problem Solving
- Replacement rotor for worn or warped discs on BMW M2, M3, and M4
- Improves heat dissipation to reduce brake fade during aggressive driving
- Rust-resistant coating helps prevent corrosion in humid or wet environments
- Directional drilled design aids in water and debris evacuation for consistent braking
- Maintains braking performance under high-stress conditions
Installation Notes and Tips
Ensure the rotor surface is clean and free of contaminants before installation. Verify the rotor’s directional orientation matches the vehicle’s rotation direction for optimal performance. Check the discard thickness regularly to maintain safety standards. Use proper torque specifications when mounting the rotor to avoid warping.
Quality Assurance
Dynamite Friction manufactures the 624-31194D rotor to meet OEM standards for fitment and performance on BMW M2, M3, and M4 models. The rust-resistant coating and precise machining contribute to long-term reliability. Please consult the manufacturer or authorized dealer for warranty details specific to this rotor.
| Brand | Dynamite Friction |
|---|---|
| Part Number | 624-31194D |
| Position | DFC GEOSPEC Coated Rotor - Drilled, Rear Left |
| Discard Thickness | 22.4 |
| Disc Finish | Plain |
| Hat Finish | Geospec silver grey |
| Rust Resistant Coating | Yes |
| Outside Diameter | 370 |
| Surface Type | X drilled |
| Directional or Non-Directional Brake Surface | Directional |
This part fits 20 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2026 | BMW | M2 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2026 | BMW | M3 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2026 | BMW | M4 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2025 | BMW | M2 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2025 | BMW | M3 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2025 | BMW | M4 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2024 | BMW | M2 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2024 | BMW | M3 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2024 | BMW | M4 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2023 | BMW | M2 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2023 | BMW | M3 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2023 | BMW | M4 | Rear Left | Full Cast Replacement for Aluminum Hat Disc; DFC GEOSPEC Coated Rotor - Drilled |
| 2022 | BMW | M3 | Rear Left | Fitment: Disc Brake Hardware Kit for Iron Rotors with Original Design Aluminum Hat Rotors; DFC GEOSPEC Coated Rotor - Drilled |
| 2022 | BMW | M3 | Rear Left | Fitment note: Compatible with iron rotors and full cast rotors with optional design.; DFC GEOSPEC Coated Rotor - Drilled |
| 2022 | BMW | M4 | Rear Left | Fitment: Disc Brake Hardware Kit for Iron Rotors with Original Design Aluminum Hat Rotors; DFC GEOSPEC Coated Rotor - Drilled |
| 2022 | BMW | M4 | Rear Left | Fitment note: Compatible with iron rotors and full cast rotors with optional design.; DFC GEOSPEC Coated Rotor - Drilled |
| 2021 | BMW | M3 | Rear Left | Fitment: Disc Brake Hardware Kit for Iron Rotors with Original Design Aluminum Hat Rotors; DFC GEOSPEC Coated Rotor - Drilled |
| 2021 | BMW | M3 | Rear Left | Fitment note: Compatible with iron rotors and full cast rotors with optional design.; DFC GEOSPEC Coated Rotor - Drilled |
| 2021 | BMW | M4 | Rear Left | Fitment: Disc Brake Hardware Kit for Iron Rotors with Original Design Aluminum Hat Rotors; DFC GEOSPEC Coated Rotor - Drilled |
| 2021 | BMW | M4 | Rear Left | Fitment note: Compatible with iron rotors and full cast rotors with optional design.; DFC GEOSPEC Coated Rotor - Drilled |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.