The Mishimoto performance transmission cooler for the 2021+ BMW G8X M2, M3, and M4 keeps the ZF 8HP transmission at optimal temperature behind the S58 engine — important once a tune and bolt-ons push more torque than the stock cooler can handle, which can otherwise cause high oil temps, sluggish shifts, and transmission damage. It delivers a 41% increase in core volume and 17% greater fluid capacity, with internal cooling fins for more fluid-contact surface area and a dual-pass design that keeps fluid in the cooler longer to remove more heat without reducing airflow to components behind it.
| Type | Performance transmission cooler |
| Platform | BMW G8X (M2 / M3 / M4), ZF 8HP |
| Core | Dual-pass, internal cooling fins |
| vs. Stock | +41% core volume, +17% fluid capacity |
| Part Number | MMTC-G80-21 |
| Warranty | Mishimoto Lifetime Warranty |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2025 | BMW | M2 | Base |
| 2021-2024 | BMW | M3 | Base |
| 2021-2025 | BMW | M3 | Competition |
| 2022-2025 | BMW | M3 | Competition xDrive |
| 2024 | BMW | M3 | CS |
| 2021-2026 | BMW | M4 | Base |
| 2021-2023,2025-2026 | BMW | M4 | Competition |
| 2022-2026 | BMW | M4 | Competition xDrive |
| 2025 | BMW | M4 | CS |
| 2023 | BMW | M4 | CSL |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
