8HP Oil Cooler Adapter - B57 - Type 3

8HP Oil Cooler Adapter for 8HP75 B57

An updated slimmer and lightweight design to follow the gearbox as close to the body as possible. Converts the gearbox oil outputs to two AN8 threaded output, thread ¾-16.
Use any ORB8 fittings to whatever output your application finds suitable (AN6, AN8, AN10 etc.) We offer high quality AN8 fittings from Nuke Performance as an option.

Made by high grade alumium and beautifully 5-axis CNC gives a smooth and attractive look, no bulky straight lines here 😉 Big bore internal oil passages to ensure maximum flow. Anodizied black and laser engraved for a premium feel and experience.
We would like to claim this it the best performing, most lightweight and most beautiful looking oil cooler adapter on the market.

The 8HP75 B57 has 18 mm bores, no ofset holes and M6 mounting bolt. Comes with bolt and o-rings, high quality AN8 adapters available separately.

If you are unsure of the correct sized adapter you need, dont hesitate to contact us.

After 3D scanning a lot of gearboxes we found that almost every gearbox had its own dimensions. Different bore sizes, mounting bolt size, hole of sets, no hole ofset. Not sure what the ZF engineers been up to be honest.

So we ended up with three different designs, all verified on the following gearboxes so far
8HP45 N54/N55
8HP70 N57
8HP70 N63
8HP75 B57
8HP90 N73/N74

Most probably they fit any other BMW 8HP gearbox as well, just send us a message and we will help you out.

You can also check our transmission technical information page for more detailed information.

Transmission technical information

It is important to note that the transmission fluid should not exceed 140°C.