Oil Cooler Replacement 1810171C2 Fits International Combine Tractor Harvester. 1810171C2, 1810171C1, 690884C1, 690884C2, 735260C92. International Engine Models: 400 Series IH Engines – D414, DT414, D436, DT436, DT466. Case IH Combine Models: 1660, 1670, 1680. Case IH Harvester Models: 1822, 1844. International Tractor Models: Hydro 100, Hydro 186, 966, 986, 1066, 1086, 1466, 1486, 1566, 1586, 3388, 3488, 3588, 3688, 3788, 4166, 4186, 4366, 4386, 5088, 5288, 5488, 6388, 6588, 6788, 7288, 7388, 7488. International Combine Models: 1440, 1460, 1470, 1480. 20 Length (includes aluminum adapter).