Description
Isuzu D-Max Transmission Cooler with 5 and 6 Speed Auto (Up To June 2020)
What’s the best automatic transmission cooler kit for your D-Max? It’s the one that offers superior cooling, rugged durability, and dependable reliability. Our Isuzu D-Max Transmission Cooler is engineered to keep your transmission at safe operating temperatures—even when towing or tackling tough offroad conditions. Custom-designed for the D-Max, it ensures a perfect fit and performance you can trust in the harshest environments.
Here’s what our Customers are saying about our range of Transmission Cooler Kits:
“Has to be one of the best investments I’ve made. Should be fitted to all 4WD’s in Australia. Excellent instructions. Easy to fit.”
Gavin, F
“Purchased this kit for towing a caravan. Very impressed. Reduced transmission temperatures by 15 – 20°c when towing. Well put-together kit. Easy installation. Fast delivery and excellent communication.”
James, J
Add 1L Full Synthetic Transmission Fluid
When you are installing the transmission cooler you may want to top-up the transmission fluid. Select the “Add 1L Full Synthetic Transmission Fluid” option from the drop-down menu to add 1L of Full Synthetic Transmission Fluid.
Wholesale’s transmission cooler kits are:
- 4WD tough – Thick 3mm heavy duty steel
- Strong single piece bracket design – For maximum rigidity even over corrugations
- Custom designed for the Isuzu D-Max
- Dual coated – both zinc plated and Mannex Black coated for maximum corrosion resistance
- High efficiency crossflow transmission oil cooler
- High temp trans cooler hose and fittings
- Full DIY installation instructions
As the largest 4WD transmission specialist in the southern hemisphere we see many failed from other less experienced retailers. It’s one of the reasons we designed and manufactured our very own Isuzu D-Max Transmission Coolers here in Australia for Australian conditions.
WARNING!! Â
- Never install a multi-piece transmission cooler bracket or one that includes the transmission cooler as part of the bracket structure. They are prone to fatigue and failure.
- Never install a stainless steel transmission cooler bracket. Stainless steel induces corrosion in your aluminium cooler. Just google “stainless steel and aluminium” to find out more.
Wholesale is proud of our kits because they are Australian designed and manufactured for our tough, outback conditions. They won’t let you down.
Note! In order to get further control of your transmission temperature you can check out our Transmission Temperature Gauges or Transmission Lock-Up Kits.
Installation Instructions
Trevor Holdsworth (verified owner) –
Prompt delivery and good product
Julie-Anne CROSARIOL (verified owner) –
Great product. Value for money, easy to install. Exactly as advertised
Peter Lawrence (verified owner) –
Good unit. It is great easy to fit just hope it keeps my Gear box oil a bit cooler than it was
Jai Patterson (verified owner) –
Permanent 20* reduction is most conditions!. I fitted this cooler to my 2015 D’max about 3 weeks ago, I’ve since travelled 3000km towing my 2.8t caravan, up mountains and a bit of slow low range off-road driving, really impressed with how it keeps the temperature below 90* in hard conditions and about 68* on the highway, prior to fitting it, I was regularly seeing 104*+ and it would stay there, with the cooler it comes up ang goes back down.
Very happy with the fitment, instructions and works incredible!
David Farrier (verified owner) –
Dmax automatic transmission oil cooler. Great product, received in very good time.
Graeme Harris (verified owner) –
great piece of gear. easy to follow instructions. Fitted easily. Dropped temp when towing 2.8T by 20 degrees. Very happy.
Darren Wood (verified owner) –
Dmax trans cooler. Excellent cooler with very easy to use instructions. Only coolers I will ever use. Service and delivery times were great.
Paul Mitchell (verified owner) –
Heavy Duty Transmission Oil Cooler Kit to suit Isuzu D-Max with 5 Speed and 6 Speed Auto (Up To June 2020)
KAREN PASUT (verified owner) –
Heavy Duty Transmission Oil Cooler Kit to suit Isuzu D-Max with 5 Speed and 6 Speed Auto (Up To June 2020)
Bonnie Croton (verified owner) –
Very happy with. My husband is very happy with ir
Steven Swan (verified owner) –
Trans Auto cooler. Fitted to my D-max and then ran 10000k to WA and return. Not a problem was encountered,
Glynn Moolenaar (verified owner) –
Heavy Duty Transmission Oil Cooler Kit to suit Isuzu D-Max with 5 Speed and 6 Speed Auto (Up To June 2020)
Customer (verified owner) –
Great Product. Happy with the customer service bit of a delay getting to me but their customer service is excellent chased it up and all good cheers to David the trans cooler is top class product and fits up really easy great instruction easy to follow highly recommend
Paul , Moonta Bay (verified owner) –
Mux trans cooler. Great service, easy to install
Matt Ford (verified owner) –
Awesome!!. Got my trans cooler in quick time. It was so easy to put in. It took me longer to take my bash plates off than to put cooler in. It is awesome it hasn’t missed a beat since and dropped temp across the board by 25 degrees. Extremely happy with the product. Well done guys.
Simon french (verified owner) –
Auto trans cooler. Great bit of kit which should be on all Australian market 4wd’s as standard. Brought temps down to acceptable temps even when towing a 23ft van.
Phil O’Rourke (verified owner) –
Great Kit. The instructions made it easy to fit, so far no issues I can’t wait to tow my caravan to see the difference.
Kian Pender (verified owner) –
Heavy Duty Transmission Oil Cooler Kit to suit Isuzu D-Max with 5 Speed and 6 Speed Auto (Up To June 2020)
Ren Worth (verified owner) –
DMAX Transmission Cooler. Easy fit , great quality , highly recommended
Robbie REILLY (verified owner) –
Happy customer. Awsome product we’ll made and to deal with was amazing so fast and speedy with reply’s and even recived the product the next day I perth WA and that never happends
So thanks heaps guys
Alexander Herrmann (verified owner) –
A must for towing.. Just towed a 2.9 ton load up the gillies range. ATF temp max was 105 deg. 19 km climb of 800 m. 260 corners.
Lloyd Hurlock (verified owner) –
Got a transmission cooler for my D-max 18 auto installed easy every thing fitted like it should the first time and the manual expanded everything well. Thank you
Leonard Gallina (verified owner) –
excellent quality product. Fitting instructions easy to read and cooler was easy to fit, i highly recommend automatic wholesale products
Piet Vlok (verified owner) –
Auto transmission oil cooler for isuzu d’max.. I’m very happy with my cooler. Good quality and work 100%. I would recommend this cooler as a must when you use your vehicle for towing and driving mountains and long inclines. Thank you Wholesale Automatic Transmission company for an excellent product!
Peter Hobbs (verified owner) –
nice product. excellent kit easy to fit d-max 2019 6 speed auto
trans runs 20 degrees cooler when driving around town
delivery was prompt
Darren Stephens (verified owner) –
Heavy Duty Transmission Oil Cooler Kit to suit Isuzu D-Max MU-X with 5 Speed and 6 Speed Auto (Vehicle Build BEFORE July 2020)
Matthew Croatto (verified owner) –
Heavy Duty Transmission Oil Cooler Kit to suit Isuzu D-Max MU-X with 5 Speed and 6 Speed Auto (Vehicle Build BEFORE July 2020)
Richard P Werribee (verified owner) –
Trans Cooler. As easy as it looks. Perfect fit, everything you need to do the job. helps if you have a little knowledge on how things work but if you’re looking at these? Then you probably do. In real terms takes about an hour to fit, another thirty minutes to fill and check the fluid level, and that’s it. Works a treat, great for dragging the caravan all over the country side.
Robert Caruso (verified owner) –
DMAX UTE UATO TRANSMISSION COOLER. Excellent product with great instructions – Works very well
Michael Devine-Jones (verified owner) –
Great bit of kit!. Great quality, easy to fit, works well (2017 Isuzu D-MAX) must have for towing.
Margaret Purton (verified owner) –
As easy as it looks. The only down side of fitting this trans cooler was that it only took 45 minutes to fit, so not sure where they get the 2 hours fitting time from lol. Seriously a quality piece of gear, well made, easy to fit, everything you need is right in the box. It helps if you have a reasonable set of tools, not be a complete nuffy when it comes to mechanical repairs, but it was very aesy to fit and plumb. The instructions provided were easy to follow with big pictures, I got my 15 year old grandson to do most of the work under my supervision….it’s really that simple.
Dawie Erasmus (verified owner) –
Oil cooler. Very happy with the product and installation was great.
Nathan Pickett (verified owner) –
Transmission cooler