Drop in replacement for Case / IH Fuel Cooler 87598494 and 89511010. Fits Case / IH Backhoe 580, 590 Super M, Super M Plus, Series 3. Robust STEEL TUBE, aluminum fin construction. HEAVY DUTY. Don't buy the cheap aluminum alternative - You will just be buying another in a few years. Core size (finned area) is 15 3/4" x 6" x 3/4" depth. Meets or exceeds all Case / IH OEM specs for this part Helium leak tested from the factory. Buy this cooler and support American workers.