External Oil Cooler Plate For M57N and M57N2

M57N/M57N2 External Oil Cooler Adapter Plate

Improved Oil Cooling Solution for BMW Diesel Swaps

This CNC-machined plate replaces the factory heat exchanger, enabling reliable external oil cooling for M57N/N2 engines in high-stress or off-road applications.

Key Features

✔ Dual-Port Design – M22x1.5 threaded ports for:

• (2) Oil lines (out to cooler + return)

✔ AN Fitting Ready – Compatible with AN8-AN12 adapters (not included)
✔ Bolt-On Installation – Includes mounting hardware
✔ Off-Road Optimised – Protects oil temps in slow-speed/towing scenarios

Compatibility:

• M57N & M57N2 engines
• Replaces factory oil/water heat exchanger

Installation Notes:

• Fittings sold separately – Choose AN size based on your cooler setup

*Coolant port has been removed from April 25 onwards*