BMW & Jaguar 8HP · 6HP · DCT Cooler Adapter

Not sure which port you have? See the cooler adapter fitment table →

One adapter for every BMW and Jaguar 8HP, 6HP and DCT

A billet CNC, black-anodized adapter body with interchangeable port fittings. The body bolts to the factory cooler-line location and gives you two ORB8 female ports to run AN lines from. The port fitting is what matches your transmission, so if you swap transmissions later you only need a new fitting, not a new adapter. Engraved logo and flow direction.

In the box: the adapter body with your chosen port fitting installed, the port O-rings (full set plus spares), and the mount bolts and washers. Nothing else to source. Extra port fittings and the fitting install tool are available. Message us for pricing.

Choose 6AN, 8AN or 10AN and the matching ORB8-to-AN male fittings come pre-installed. Choose None and you get the same adapter with the ORB8 ports left open, the right call if you already run your own ORB8 fittings.

Check your port before you order

The port on your transmission is the only thing that decides which fitting you need. The same engine wears different ports depending on which transmission it was bolted to. An N55 is 12mm behind a 6HP19/21 and 18mm behind an 8HP45. A B58 is 17mm on an 8HP50 and 18mm on an 8HP51. An M57 is 12mm on a 6HP19/21 and 14mm on a 6HP26/28. Going by what the car was is how people end up with the wrong part.

Which one is yours

Start by looking at the port. These seal in two completely different ways, and you can see which is which:

Bore seal: the 17mm and 18mm. A plain round bore. The fitting goes in and the O-ring seals against the bore wall.

Face seal: the 12mm and 14mm. A stepped, machined port with a flat sealing face at the entry. These replicate the factory formed hardline tips: the O-ring is squeezed against that flat face rather than sealing inside a bore. Every diesel 6HP port is a face seal, 12 or 14, never the 17mm bore seal.

Then find your transmission and engine in the list below, or in the fitment table.

Jaguar 8HP: choose Jaguar 17mm Port. It uses the same 17mm fitting, and ships configured for the Jaguar case with the BMW spacer removed and a mounting standoff included.

Still not certain? Send us a photo of the port and we will confirm it. We would rather confirm it in a message than have you order twice.

If you order the wrong port size, our standard return policy applies: you pay return shipping and the restocking fee. Check first, order once.

Fitment reference

BMW 12mm Port (face seal)
6HP19 · 21 with N54 N55 (Gas) · 6HP19 · 21 with M57 and pre-LCI N47 (Diesel) · 6HP26 · 28 with N62 S63 (Gas) · DCT with N54 N55 S55 (Gas) · DCT with S65 (Gas) · DCT with S63 (Gas)

BMW 14mm Port (face seal)
6HP26 · 28 with M57 N57 (Diesel) · 6HP19 with N47N, E9x LCI (Diesel)

BMW 17mm Port (bore seal)
8HP45 with N47 (Diesel) · 8HP50 with B58 (Gas) · 8HP70 · 75 with N57 (Diesel)

Jaguar 17mm Port (bore seal)
Jaguar 8HP

BMW 18mm Port (bore seal)
8HP45 with N55 (Gas) · 8HP45 with N13 (Gas) · 8HP45 with N20 (Gas) · 8HP51 with B48 B58 (Gas) · 8HP70 · 75 · 76 with N63 (Gas) · 8HP75 · 76 with S63 (Gas) · 8HP76 with S58 (Gas) · 8HP75 · 76 with B57 (Diesel) · 8HP90 · 95 with N74 (Gas)