Mishimoto 2021+ BMW G8X M3/M4 Transmission Cooler

This Mishimoto performance cooler is a direct-fit upgrade for 2021-2027 BMW applications covering M2, M3, M3 CS, M3 Competition, M4. It replaces the weak points of the stock part with stronger materials and better flow or cooling so heat, boost and abuse stay under control on street and track duty. AutoTalent lists verified US-market fitment in the table below.

Why upgrade

The ZF 8-speed transmission found in the 2021+ BMW G8X M2/M3/M4 is a stout and snappy unit that's capable of withstanding the onslaught of torque brought on by the S58 engine it's mated to. Add a tune and some bolt-ons, and the stock cooler just can't keep the ZF 8HP safe. These kits are engineered around real chassis packaging, so hoses, coolers and adapters line up without fabrication on the listed years. Follow the published torque specs and install guide, reuse sensors where instructed, and confirm clearances if you run other supporting mods. Every unit ships with the Mishimoto Lifetime Warranty for as long as you own it.

Features

• Direct fit for ZF 8HP equipped 2021+ BMW G8X M2/M3/M4
• 17 percent increase in fluid capacity for added cooling potential
• 41 percent increase in core volume for fast and efficient cooling
• Dual-pass design improves cooling performance without reducing airflow to other components
• Includes removable steel stone guard for protection against road and track debris
• Internal fins increase cooling surface area and heat transfer
• 17 rows core vs. 14-row stock cooler for increased cooling surface area

What's Included

• Mishimoto Transmission Cooler Hard Lines
• Mishimoto Lifetime Warranty

Specifications

Fitment Notes

Verified against Mishimoto US applications and dealer listing for 2021-2027 (8 rows). Years extended to 2027 where the US model remains in production.

Vehicle Fitment