The Dinan B58D engine cover replaces the factory plastic cover with a 2x2 matte twill carbon fiber piece accented by opposing gloss carbon fiber and painted white cylinder-count callouts. Dinan power stripes echo the brand's legacy E36 and E46 valve covers. At 2.9 pounds versus the 4.1-pound OEM cover, it trims weight while dressing up the engine bay, and included grommets make it a direct bolt-on replacement.
Specifications
| Type | Carbon fiber engine cover (direct replacement) |
| Material | 2x2 twill carbon fiber |
| Finish | Matte base with gloss carbon fiber and white accents |
| Weight | 2.9 lb (OEM 4.1 lb) |
| Hardware | Grommets included |
| Part Number | D590-0004 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2026 | BMW | M240i | Base |
| 2022-2026 | BMW | M240i xDrive | Base |
| 2020-2024 | BMW | M340i | Base |
| 2020-2024 | BMW | M340i xDrive | Base |
| 2021-2024 | BMW | M440i | Base |
| 2022-2024 | BMW | M440i Gran Coupe | Base |
| 2021-2024 | BMW | M440i xDrive | Base |
| 2022-2024 | BMW | M440i xDrive Gran Coupe | Base |
| 2020-2024 | BMW | X3 | M40i |
| 2020-2025 | BMW | X4 | M40i |
| 2022-2026 | BMW | Z4 | M40i |
| 2020-2021 | BMW | Z4 | sDrive M40i |
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