The John Deere RE61767 oil cooler is an essential OEM component designed to maintain optimal engine oil temperature in a wide range of John Deere agricultural and construction equipment. This genuine oil cooler ensures efficient heat exchange, contributing to engine longevity and performance. It is a direct replacement for superseded part numbers AR96175 and RE20194, providing reliable fitment and functionality. Compatible with numerous models including 4040, 4050, 4240, 4440, 4555, 4640, 4755, 4840, 4955 series tractors, 6620, 7720, 8820 combines, 9940, 9950, 9960 cotton pickers, 5720, 5730, 5820, 5830 forage harvesters, 770A, 770B, 772A, 772B graders, 644E, 644G, 744E, 744H, 844 loaders, and 640D, 648D, 740A, 748E skidders.