Clutch Masters lightweight steel billet flywheel for the B58 3.0L turbo inline-six found in the BMW 340i and 440i and the 2023 Toyota GR Supra. CNC-machined in-house in the USA from a 1045 steel billet core, zero-balanced to spin 100% true, and black oxide coated for rust protection. Every Clutch Masters flywheel is SFI 1.2 certified for motorsport use.
| Type | Lightweight billet steel flywheel (850 Series) |
| Material | 1045 steel billet (black oxide) |
| Balance | Zero-balanced |
| SFI | SFI 1.2 certified |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2018 | BMW | 340i | Base |
| 2017-2018 | BMW | 340i GT xDrive | Base |
| 2016-2018 | BMW | 340i xDrive | Base |
| 2017-2018 | BMW | 440i | Base |
| 2017-2018 | BMW | 440i Gran Coupe | Base |
| 2017-2018 | BMW | 440i xDrive | Base |
| 2017-2018 | BMW | 440i xDrive Gran Coupe | Base |
| 2023 | Toyota | GR Supra | A91-MT Edition |
| 2023 | Toyota | GR Supra | Base |
| 2023 | Toyota | GR Supra | Premium |
