Gas Stay Door - 4402639 Models Agroprima 4.31, Agroprima 6.06, Agroprima 6.16, Agroxtra 3.57, Agroxtra 4.07, Agroxtra 4.17, Agroxtra 4.47, Agroxtra 4.57, Agroxtra 6.07, Agroxtra 6.17, DX4.51