Compares with parts numbered by Lucas as 400308, 407044, 484261, 489244 and Remax ES92, ES96. Nuffield Tractor 1955/58. For use with distributors numbered by Lucas as DK4-4A-6-6A, DKH4-4A, DU6-6A, DU8A, and DV, DX4A, DX6A, DVX, DY, DVXH AND DVZH distributors.