HiSun 'O2' Oxygen Sensor
FITS ALL EFI MODELS 2011 - 2022
HiSun, Cub Cadet, Axis, Coleman and More
HiSun Starter Clutch or known as One-Way Starter Gear
Sold as a Set of 2 Mated Parts as Shown
THIS IS A FACTORY HISUN PART !
It fits all HiSUN EFI AND CARB 450-500-550-700-750
approx. 2008-2018 with standard 1:5 Crankshaft.
The Newer 2019ish and up has a 1:7 Crankshaft that has a Nut that holds on the Flywheel.