The John Deere SA21779 is a genuine OEM fuel tank cap designed to provide a secure seal for the fuel tank on a wide range of John Deere equipment. This essential component helps prevent fuel spillage and contamination, ensuring optimal performance and safety. It is compatible with numerous John Deere compact utility tractors, utility tractors, 6R, 7R, 8R, and 9R series tractors, as well as select Gator utility vehicles and ZTrak mowers. Constructed to John Deere's rigorous standards, this cap ensures a precise fit and reliable operation. Dimensions include a length of 95.25 mm, width of 95.25 mm, and height of 50.8 mm, with a weight of 0.054 kg.