The John Deere U15242 O-Ring is an authentic OEM component designed to provide a secure and leak-proof seal within numerous John Deere agricultural and construction machines. With an inner diameter of 17.17 mm, an outer diameter of 20.57 mm, and a thickness of 1.78 mm, this O-ring is engineered to exact specifications for optimal performance and durability. It is widely used across a broad range of John Deere equipment, including tractors, combines, cotton pickers, forage harvesters, loaders, mowers, and sprayers, ensuring critical fluid containment and preventing system contamination.