These kits once again are designed to outclass the competition with design and efficiency.

When compared to other “heavy duty” options, it is only appropriate for these to be called Extreme, due to much higher efficiency and stronger mounting with a steel bracket that is hard mounted to the panel (instead of the plastic frame.

In addition to our other class leading features (standard in all PDI transmission cooler kits), the 10 speed auto gearbox fitted to the Amarok MUST be fitted with 1/2inch ( 12mm lines). Do not attempt to adapt smaller lines to work with the transmission as they require high fluid flow to prevent long term issues.

NOTE: other Australian supplied transmission coolers kits use 4.5-5.0m of 10mm hose to get from the gearbox to front of the car. They also come with with restrictive, smaller coolers (16,000BTU rated) and when it was realised that their cooling was insufficient for many installs, a second cooler was added IN SERIES, which makes their heat capability close to our unit but too restrictive

By default, all PDI external transmission coolers are designed to be market leading through:

· Maximum efficiency 45,000BTU (energy dissipation unit of measure).

- Stacked Plate coolers - this is the best design you can use.

· Steel one-piece brackets (zinc plated and coated) to eliminate flexing of the aluminium cooler.

· High quality transmission cooler hose (rated to 400psi).

· Outlets on the top to prevent air locks inside the transmission cooler.

NOTE: Having the outlets at the bottom make the installation easier as the pipes are run down under the radiator, but if you get an airlock (from initial installation empty) there is a strong chance you will never actually fill the top of the coolers with fluid and designed cooler efficiency may never be reached.

This is the best cooler we have ever seen and does an exceptional job at dropping transmission temperatures. A number of years ago, a friend needed massive cooling for his offroad race vehicle, which was auto and running a high powered 4.2L turbo diesel engine - in my 1 ride in this vehicle out the back of “the pines”, as well as being very fast in and out of the corners, I just thought how hard he was on the transmission. He asked for a large (550x300x76mm) bar and plate intercooler, which he sealed the outlets and ran transmission fluid through it. After a few races he decided he needed more cooling so we supplied the 45,000BTU transmission cooler above, which he claimed made a big difference. A couple years later, he reported that at some point, due to mounting and the weight of the fluid filled intercooler it formed a crack, so he had to bypass it during a race and it made no difference to the overall cooling as the properly designed and suitably sized stacked plate core did such a good job. At that point the much larger bar and plate cooler was never refitted.