125 gram tube

Outer shaft 28mm, inner drive shaft profile 11mm spline

Heavy Duty, 26mm spline

O/E:531 000 77 30

O/E:4137 640 0100

Outer shaft 28mm, standard 9mm spline

Heavy Duty Gearbox

O/E:4116 640 0115 / 4116 641 0362A

Fits Husky 362 and many more

Fits Stihl 08S

Fits Husky 362, 365, 371 & 372

Fits Stihl 038 Magnum