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Australia's first complete secondary transmission cooler kit for the Mitsubishi Pajero NM-NX.

This isn't just a transmission cooler. It's a complete bolt-on kit with the 25 row aluminium cooler, 3 custom stainless steel mounting brackets with black powder coating, hose, fittings, clamps and mounting hardware included.

Bigger tyres, towing, bull bars and off-road driving can all put additional load on your Pajero's automatic transmission and generate more heat. Our secondary cooler works alongside the factory transmission cooler to provide additional cooling when your gearbox is working hard.

It's particularly beneficial off-road, where the torque converter can spend more time unlocked, generating additional heat. Keeping transmission temperatures under control can help protect your transmission fluid and reduce heat-related wear over time.

Suits: Automatic Mitsubishi Pajero NM, NP, NS, NT, NW & NX (2000-2021). Tested on 3.2L Diesel models. Petrol owners should compare our fitment photos before purchasing.

Shipping & Delivery Plus

In-stock products shipping from our Brisbane warehouse are generally dispatched within 1-3 business days. This timeframe excludes orders containing pre-order products, which will generally ship once all items are available.

To offer an even greater range of tried and trusted products, we also partner with selected brands that ship directly to you. These products are marked “Dispatches from supplier” on the product page and may arrive separately from other items in your order.

View our Shipping Policy

Pre-orders & mixed orders Plus

Products marked Pre-Order are not currently in stock. Ordering reserves your item from an incoming shipment.

Any estimated arrival date is a guide and may change due to manufacturing, freight, customs clearance, weather or other circumstances outside our control. We’ll keep you informed if there are any significant changes.

If your order contains both in-stock and pre-order products, your order will generally ship together once everything is available. If you would prefer the available items sooner, please contact us to arrange split shipping. An additional shipping charge will apply.

Learn more about Pre-Orders

Returns & exchanges Plus

Change-of-mind returns may be requested within 30 days, provided the product is unused, uninstalled and returned in its original packaging with all inclusions.

You can choose:

  • Full store credit
  • Refund to your original payment method: A 15% restocking fee applies

Return shipping is the customer’s responsibility, and original shipping charges are non-refundable.

*Supplier-direct and special-order products may still attract a restocking fee imposed by the supplier.

If your product arrives incorrect, damaged or faulty, please contact us as soon as possible with your order number and photos so we can help.

View our full Returns & Refunds Policy

Transmission cooler kit effectively reduces temps by ~8 degrees, ideal for towing and Australian conditions. Customers praised "high quality" components, quick shipping, and "easy to DIY" installation with included video guide. Mounting brackets are "accurate & solid," but hose joiners need improvement. Highly recommended for Gen 3 Pajeros.

  • 5 stars: 6 (75%)
  • 4 stars: 2 (25%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
D
Drover (Queensland, Australia)
BGT4X4 Secondary Transmission Cooler Kit for Pajero

Ordered and delivered quickly, no fuss. Fitted the BGT4X4 Cooler Kit to an MY15 Pajero Exceed and all works well. Simple installation and just followed the great little Video. No issues and highly recommended.

Thanks so much we appreciate it!

B
Brian (Victoria, Australia)
Specialist knowledge has resolve all my temp issues

Specialist knowledge has resolve all my transmission temp issues Thanks!

You're welcome!

T
Ticker (South Australia, Australia)
A/T aux Oil Cooler Kit

1) Mounting brackets were good ( Accurate & solid) Positioned the cooler core correctly.
2) Hose joiner supplied was very poor quality. Definitely needs improvement.
I used right angled barb connectors to attach the hoses to the cooler core. .Saves putting the cooler hose through a tight radius.
..
3

Thanks for the review Ticker. Please do reach out to us about what can be improved on the barb as we haven't experienced any issues so far thank you :)

K
Kayne (South Australia, Australia)
Quick shipping and high quality

They don’t mess around at BGT4x4. Ordered midday Monday and it arrived midday the next day from QLD to SA! Looks high quality and am excited to install it and see how well it performs since the Jatco transmissions in the Gen 3 Pajs like to get toasty especially since it’s only got a tiny cooler from factory with the new one nearly double the size. Definitely going to be buying more stuff from BGT4X4 in the future!

Awesome to hear Kayne enjoy! The fitment on the Gen 3 is a little different to the 4 but you will see what I mean once installed. The long bracket goed behind the bracket on the right to keep it straight and that's it cheers enjoy!

A
Alex (South Australia, Australia)
One of the best mods to date!

This trans cooler kept my temps way down while towing, I cannot recommend it enough for Australian conditions!

Legend thanks Alex!

p
paul (South Australia, Australia)

HI Dee very happy with the cooler.was reasonably easy to fit and have had no issues so far. Definitely does its job as does seem to drop temps by about 8 degrees.

Hey Paul thanks for the feedback, enjoy!

J
José (Dubai, United Arab Emirates)

Easy to DIY! Great product!

Great to hear!

A
Anonymous (Queensland, Australia)
Arrived within 2 days! Great quality.

Ordered as a pre-order but got it shipped out even earlier than expected! Very impressed with the quality. Glad that there are finally brackets for the Paj. Thank you Dee!!

You're welcome!

S
Secondary

Why not have the inlet and outlets angled, so the hose fits straight on, like the original one, instead of a bend in the hose, which has the potential of cracking or splitting over time with heat and also supply enough hose, so as not to have to join old hose to new hose. Just my thoughts.

BGT4X4

Hi Tony. We ran a smiliar setup for years and it has been fine. The cooler has brackets on the top of bottom so it cannot be mounted sideways for the hoses to go on. Trans hose is reinforced on the inside so kinking is unlikely. Just don't cut them too short and you shouldn't have any issues. We can supply longer hose however, the fitting time will just take longer for the customer hence we made it as easy and quick as possible.

J
Jeffrey

Will this fit with an Ironman bullbar with a winch ?

BGT4X4

Check out our video. If the winch cradle sits at the front of the bar then yes but if the winch cradle is bolted to the chassis then no if you have a winch.

What do you drive?

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