Drop in replacement for Compact Track Loader CT322 Oil Cooler AT309996 Meets all of the performance and durability requirements Single circuit oil cooler Core dimensions (finned area): 19" x 22.9" x 2.3" Robust steel tube, aluminum fin construction. Staggered tube pattern and fin design for maximum performance Enhanced oil side for maximum performance Helium leak tested from the factory. Made in the USA. Buy this cooler and support American workers 12 month warranty against workmanship defects with money back or replacement guarantee, but you won't need it