Ford Edge 2012-2015 Transmission Cooler Line BT4Z-7B028-C

This is a replacement transmission oil cooler line for the 2012-2015 Ford Edge and 2012-2015 Lincoln MKX. It is the passenger side line that runs from the auxiliary transmission cooler back to the transmission. It replaces Ford part number BT4Z-7B028-C and crosses to Dorman 624-938. It is a formed steel tube with a factory-style rubber hose section and the quick-connect ends already crimped on.

Fitment: 2012-2015 Edge 2.0L EcoBoost and 3.5L V6, 2015 Edge 2.7L EcoBoost, 2012-2014 Edge 3.7L V6, and 2012-2015 MKX 3.7L V6. Check the line routing against your old one, because the Edge uses more than one cooler line and they are not interchangeable.

On these vehicles the rubber section weeps at the crimp, and the steel tube rusts through where it sits against brackets and collects road salt. You find ATF drips under the passenger side of the engine bay, a low fluid level, or an oily film on the subframe. Run low long enough and the transmission starts slipping and flaring on shifts. Replacing the whole line fixes it properly. Patching the hose with a clamp does not hold the pressure for long.

To replace it, raise the vehicle and put a drain pan under the transmission. Release the quick-connect fittings at the auxiliary cooler and at the transmission with the correct cooler line disconnect tool, then unclip the line from its retainers. Install the new line in the same path, push each end on until it clicks, and pull back on it to confirm it is locked. Start the engine, top off the ATF to the correct level with the transmission at operating temperature, and check both ends for leaks.