The John Deere AR73888 Fuel Check Valve Assembly is a genuine OEM component designed to ensure proper fuel flow and prevent backflow in the fuel system of John Deere agricultural and construction machinery. This critical valve maintains fuel pressure and prevents fuel drain-back, ensuring reliable engine starts and consistent performance. Weighing approximately 0.05 kg, this robust check valve is compatible with numerous John Deere tractor, combine, cotton picker, loader, and other heavy equipment models, providing precise fit and long-lasting durability for optimal fuel system operation.