Mishimoto 2021+ BMW G8X M3/M4 Transmission Cooler

The ZF 8-speed automatic transmission in your 2021-2025 BMW M3, M4, or M2 is a strong unit, but when you add engine tuning and other modifications, the factory transmission cooler can struggle to keep up. High transmission fluid temperatures can lead to sluggish shifting and even potential damage over time. Mishimoto has developed a performance transmission cooler specifically for the G8X platform to help maintain optimal fluid temperatures.

This Mishimoto transmission cooler offers a significant upgrade over the stock unit. It features a 41-percent increase in core volume, which means more surface area to dissipate heat effectively. The internal cooling fins further enhance heat transfer, while the dual-pass design ensures the fluid stays in the cooler longer, allowing for maximum heat removal without impacting airflow to other essential cooling components. Additionally, the cooler boasts a 17-percent increase in fluid capacity, contributing to overall cooling potential.

Because your transmission cooler is mounted at the front of the vehicle, it's exposed to road debris. To protect it, Mishimoto includes a durable steel stone guard. Installation is straightforward and requires no modifications to your vehicle. This transmission cooler is backed by the Mishimoto Lifetime Warranty, giving you confidence in your purchase.