Brushcutter Gearbox to suit Stihl FS160,280, 400, 450 & 480
Uses a 12 x 1.5 LHF arbour nylon head
Outer shaft 28mm, inner drive shaft profile 6mm square (HD)
Original Equipment Number: 4128 640 0101
Part Number: 55010
**fits our 55004 blade guard**