The Ford/New Holland 81821793 is a genuine OEM oil filter tube designed for a wide range of Ford and New Holland agricultural tractors, industrial equipment, backhoe loaders, and skid steer loaders. This critical component ensures proper oil filtration system function. It is a direct replacement for original part numbers D6NN6706B, 83959223, and D6NN6706A, ensuring precise fit and reliable performance in compatible machinery.