This is the belt which drives the cylinder blades.
Cylinder Blade Drive Belt, Suffolk Punch 14S, 17S Part F016A57941 MODEL QX AQ148
Cylinder Blade Drive Belt, Qualcast 30s, 35s, 43s Part F016A57941 MODEL QX AQ148
Roller Drive Belt, Suffolk Punch 14s, sk, 17s Mower Part A58728, F016A58728 VB39
