766 with 360D oil cooler wanted-mission impossible! in Technical IH Talk Posted May 29, 2021 Changed my coolant filter on my 766 with D360 engine the other day and the top of the filter was black with engine oil. Upon opening radiator cap, I found that was black oil coated too. Its not grey, so I know I didn't run it long luckily but upon talking with my mechanic friend, he said I need a new oil cooler as it must be leaking oil into the coolant. I've checked everywhere I can think of and can not find a new or reman one (735259C91). Best option at this point is to take it off and have it rebuilt by Hy Capacity 4-8 weeks. I did see engine oil coolers for 360 truck engines available...anyone know if one of those would work or if they are (likely) different (part number 1810216C2)? Anyone have one by chance that would fit the tractor? I really don't want a used one as they are all over 40 years old and will be needing repair sooner than later. They do seem more available for the 400 series engines, although they were much more common than the 300 series. Thanks!