Dynamo 11 Amps fits Nuffield 10/42, 10/60, 3/42, 3/45, 3DL, 4/25, 4/60, 4/65, 4DM

Bottom Hose, Inner Ø of Hose Smaller End: 37mm, Inner Ø of Hose Bigger End: 37mm fits Nuffield 3/45, 4/65