I have one that is on an RD4 radiator. I dont know if it is the same. I will see if I can find my RD4 parts book and compare. Located Northern Calif. Grant.
Thanks grant
I am not having any luck finding my RD4 parts book so is there anybody out there that can look and see if the RD4 oil cooler is interchangible with the T series D4? Thanks a lot Grant.
I still have not found my RD4 book but I measured the mounting holes for the cooler. These are close but not exact. 17.5 inch, side to side and 24 in top to bottom. It appears the same as the mounting area on my D4 6U from the 50s. Does that make any sense for your T version? Grant.