I spent a great deal of time research
coolers for ZF transmissions.
There were some on Ebay , some on other pages advertising Hurth
OEM coolers and then I ran into the Mr Diesel
There page talks extensively about a cooler they manufacture for the ZF transmissions. I sent and email
to them with and talked to the rep " Dr. Diesel" . Sounded good. Huge improvements to cooling
and it effectively uprated the gearbox
Their cooler was about double of all the other ones online but it sounded better
So I ordered one. When I ordered I said that needed to have it arrive with in 10 days to a friend who was in the US and could bring it to me in Asia
suddenly told me i had to have it shipped fed ex over night because they weren't expecting the coolers until later the following week and it was the only way to insure it got to my friend. I reluctantly agreed to the over night shipping
The cooler arrive the next day 9 days before my friend was scheduled to leave at a cost of 120 dollars.
To add insult to injury when I got the cooler it was the OEM cooler made by Hurth
at double the retail price
. Not a product of their own.
Stay clear of these guys , not on the up and up .