57310DX, 47890DX, 57310DY. A, AV, B, H, M, MV, O4, O6, OS4, OS6, W4, W6, WR9 (with cut-out relay on generator), C (with cut-out relay on generator, Up to S/N 47125), Fits Cub (cut-out relay Fits Cub mounts on governor housing), HV (with cut-out relay on generator, Up to S/N 340953), W9 (with cut-out relay on generator, magneto ignition).