This DFC GEOSPEC coated front brake rotor is a direct-fit OE replacement shared across the BMW 230i, 330i/330e, 430i, X3, X4, Z4, and i4, plus the Toyota GR Supra. Cast from premium G3000/G11H18 iron and precision-cut and 100% mill-balanced for vibration-free stops, it carries a GEOSPEC corrosion-resistant coating that outlasts zinc or conventional painting. The non-directional finish speeds pad break-in, and the rotor installs ready to go with no pre-degreasing required. Confirm fitment against the application table below.
| Part Number | 604-31171 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2022-2025 | BMW | 230i | Base / xDrive |
| 2019-2024 | BMW | 330i / 330e | Base / xDrive |
| 2021-2025 | BMW | 430i | Base / xDrive / Gran Coupe |
| 2018-2026 | BMW | X3 | sDrive30i / xDrive30 / xDrive30e / xDrive30i |
| 2019-2025 | BMW | X4 | xDrive30i |
| 2019-2025 | BMW | Z4 | sDrive30i |
| 2025 | BMW | i4 | eDrive40 |
| 2021-2024 | Toyota | GR Supra | Base |
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