The DFC GeoSpec coated drilled brake rotor is a left-front directional disc cast from premium G3000/G11H18 iron with a corrosion-resistant coating over the entire rotor. Cross-drilling aids cooling and wet-weather bite, while 100% mill-balancing delivers smooth, vibration-free stops. Ready to install with no pre-degreasing needed, it is sold individually for the left-front corner.
Specifications
| Type | GeoSpec Coated Drilled Brake Rotor |
| Position | Front, Left |
| Material | G3000/G11H18 Cast Iron |
| Finish | GeoSpec Coated (Corrosion-Resistant) |
| Part Number | 624-31129D |
| Quantity | 1 (sold individually) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2018 | BMW | M2 | Base |
| 2015-2018 | BMW | M3 | Base |
| 2015-2020 | BMW | M4 | Base |
| 2019-2020 | BMW | M4 | CS |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
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