Complete Secondary Transmission Cooler Kit for Mitsubishi Pajero NM-NX (2000-2021)
- Complete secondary transmission cooler kit - not just the cooler
- Works alongside the factory transmission cooler for additional cooling
- 3 custom stainless steel mounting brackets with black powder-coated finish
- Ideal for towing, off-roading and larger tyres
- Heavy-duty powder-coated aluminium cooler
- Everything required for installation included
- Backed by a 2-year warranty
Suits automatic Mitsubishi Pajero NM-NX (2000–2021):
Tested on 3.2L Diesel models.
For Petrol Pajeros, please compare our product and fitment photos with your vehicle before purchasing.
Bull Bar Compatibility
Confirmed fitment with:
- OEM Smart Bar
- ARB bull bars
- MCC bull bars
- Alpha 4WD bull bar when fitted without a winch
Cooler dimensions: 288 × 275 × 20mm
Hose size: 3/8"
Cooler: Aluminium
Brackets: Stainless steel with black powder-coated finish
Everything you need for installation is included:
- 1 × Heavy-duty powder-coated aluminium transmission cooler
- 3 × Custom stainless steel mounting brackets with black powder coating
- 3/8" transmission hose
- 3/8" barb joiner
- Clamps
- Bolts, nuts & washers
Does this replace the factory transmission cooler?
No. This is a secondary transmission cooler that works alongside the factory cooler to provide additional cooling capacity.
Why add a secondary transmission cooler?
Heat is one of the biggest enemies of an automatic transmission. Towing, larger tyres, modifications and off-road driving can all increase the load on your transmission and generate additional heat.
A secondary cooler provides additional cooling capacity to help manage transmission temperatures, protect the transmission fluid and reduce heat-related wear.
Why is this different from buying a universal transmission cooler?
This is a complete Pajero kit, rather than just the cooler itself. You receive the cooler along with 3 custom mounting brackets, transmission hose, fittings, clamps and mounting hardware required for the installation.
Is the factory transmission cooler retained?
Yes. The BGT4X4 cooler is installed as a secondary cooler, so your factory transmission cooler remains in use.
Will it fit with my bull bar?
We've confirmed fitment with OEM Smart Bar, ARB and MCC bull bars. It can also be fitted with an Alpha 4WD bull bar when a winch isn't installed.
This product comes with a 2-year warranty.
At BGT4X4, we’re committed to providing quality 4WD accessories and clear information to help you buy with confidence. The following terms outline our position on warranty, installation, and liability.
Installation Responsibility
- Professional installation is always recommended. Many of our products require technical knowledge and tools for correct fitting.
- BGT4X4 is not responsible for any damage caused to your vehicle, property, or person due to incorrect installation, modification, or use of any product sold.
- Any damage or fault arising from improper installation may void warranty coverage.
Warranty Coverage
- Warranties are set by the manufacturers or suppliers of each product. Details are included in the product listing where available.
- BGT4X4 may offer longer warranty on select items sold under our own brand — this will be clearly outlined on the product page.
- Products must be used as intended and kept in original condition to qualify for warranty claims.
Warranty Exclusions
- Incorrect or unauthorised installation
- Off-road misuse beyond product intent
- Wear and tear, cosmetic marks or damage
- Labour, freight, or removal/reinstallation costs
Product Use & Compliance
- Some of our products are intended for off-road use only. It is the customer’s responsibility to check if these products are suitable and legal for use on public roads in their region.
- We take compliance seriously and aim to only stock products that meet relevant safety expectations.
- Ultimately, it is the customer’s responsibility to ensure that any modifications are legal and roadworthy under Australian law or your local regulations.
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 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.
Secondary transmission cooler kit that effectively reduces transmission temperatures by approximately 8 degrees. Customers praised the "high quality" components and "simple installation" with accurate mounting brackets. Fast shipping noted, with deliveries within 1-2 days. Some feedback mentioned hose joiners need improvement.
- 5 stars: 6 (75%)
- 4 stars: 2 (25%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 star: 0 (0%)
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!
Specialist knowledge has resolve all my transmission temp issues Thanks!
You're welcome!
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 :)
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!
This trans cooler kept my temps way down while towing, I cannot recommend it enough for Australian conditions!
Legend thanks Alex!
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!
Easy to DIY! Great product!
Great to hear!
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!
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.
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.
Will this fit with an Ironman bullbar with a winch ?
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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