Thread: Trans Cooler Opinions

Originally Posted by Slunnie

Yes, I cant speak more highly of it. Every other one I tried blew apart somehow - where the lines connect into them. This one has never had any problems and it always stays clean. In the factory location they fill with mud and the air stops flowing through them, so they stop cooling. I was having a lot of problems with the auto for a few reasons, mud and an ECU/Intercooler upgrade which put more power through the auto and so the temps were destroying it. If the transmission light came on, the gearbox was going to need another rebuild in the near future which costs thousands. Since this ATF cooler was fitted and 3rd & 4th clutch packs fitted from a ZF 4HP24, the auto has never flinched. I had that particular ATF cooler installed in early 2006, so 15 years ago. This ATF cooler sits behind the grill which is up and out of the way and accessible. It still allows airflow around it to the radiator pack.

Just some pics.

The factory ATF cooler sits behind the A/C condensor, under the intercooler and infront of the radiator, so you cant access it clean it. I have a special radiator cleaning wand and it cant ever get in there to clean the factory ATF cooler



I've tried the tube and fin ATF Coolers as pictured, plate and fin ATF coolers and the 2 different styles of additional cooler and both failed before they got too far. The problem is actually the pressure from the ZF which is far higher than other auto's and if the ATF lines are just slip on and hose clamp connections, even with flares then they blow apart. The must be proper multibarb connections such as those used by Pirtek etc.



This is where the Davis Performance one mounts, it is behind the grill rather than on the radiator pack. This allows air to flow through it for cooling, around it for the radiator pack also and it has proper pressure fittings as stacked plate coolers do. I suspect that even if the factory ATF cooler becomes clogged with mud again that this one will continue to provide enough cooling. I run the OEM and DPL coolers in series and the auto loves it.

That's awesome. Is making me consider doing it myself rather than getting someone else to do it. How did you mount it if you don't mind me asking?
If it's all bolt on then it shouldn't be too hard to do.

Originally Posted by Pedro_The_Swift

Not sure how the end price stacks up,, all I know is my way works from several years of testing..
every part was considered from the internal hose size to why you need an extra cooler..and the whole deal is in here,, from part numbers to final install pics.

Do yourself a favour and search here,,

Is there meant to be a link in your post or did you mean search the forum?