10-tooth Pinion Gear for Viking/Stihl (MB4 RT) lawnmower

This is a 10-tooth Pinion Gear that fits Viking/Stihl lawnmowers. This gear is compatible with many models such as the MB4 RT and can be mounted on both the left and right sides of the lawnmower.

Note that this gear is a constant speed gear without free rotation. If the lawnmower is pushed faster than the constant speed, it will simply release the drive handle.