The John Deere AL56243 is a genuine OEM thermostatic control valve designed to regulate coolant flow and maintain optimal engine operating temperature in a wide range of John Deere agricultural and construction equipment. This critical component ensures efficient engine performance and prevents overheating or overcooling. With a weight of 0.12 kg and dimensions of 95 mm length, 51 mm width, and 51 mm height, it is a direct replacement for the original part. It supersedes part number AL31804.