Cummins Oil Cooler 3"x 9" 3975986CN 1.3/4'' Replacement Part

Cummins 6BTA Oil Cooler 3393663CN 1.5'' Replacement Part

3975986 Cummins Transmission Cooler 3" X 9" OAL bundle Diameter Oil Cooler CuNi. 3975986 and 3975986CN are the same part, both with a Copper Nickel bundle.

Core length = 6", overall length = 9.5" (tail to tail)
This cooler has 1.3/4" water fittings.

This is a Mr Cool (USA) part MRC3975986CN