The Case IH 500025779 is a genuine AD Blue (Urea/DEF) filler cap designed for a wide range of agricultural machinery. This essential component ensures a secure and sealed closure for the AD Blue tank, preventing contamination and spillage. It is compatible with various models from Case IH (Farmall A, C, U, Luxxum, Maxxum, Puma, Optum, Quadtrac, Magnum, Vestrum, Versum, Axial Flow), New Holland (T5, T6, T7, T8, T9, CR, CX, Big Baler), Steyr (Kompakt, Multi, Profi, Impuls CVT, Absolut CVT, Terrus CVT, Quadtrac), Fendt (200, 300, 500, 700, 800, 900, 1000 Vario), Massey Ferguson (5S, 6S, 7S, 8S, 8700 S, 9S), and Valtra (A, G, N, Q, S Series). Manufactured to OEM specifications, this cap provides reliable performance and a precise fit.