Bush, gearbox index plunger assy Norton upright+laydown (U)

Bush, gearbox index plunger assembly for Norton upright and lay down gearbox. Plunger + bush +spring. (U)
Original part numbers:
3599, A2/349 - indexing plunger / cam plate plunger 
3600, A2/350 - indexing plunger bush /cam plate plunger bush
3601, A2/351 - indexing plunger spring / cam plate plunger spring