For particular Honda GX 200 crankshaft type Q, 2.165"(55mm) slot, 1.18" journal,2.43 x 3/4 crankshaft. Compatible with 212cc and most of 196cc clone engine made in China. Comparing to a 2.125"(54mm) stroke crank it upgrades engine power.
Fits for particular chinese 168 6.5hp models, but not for 5.5hp models. Not compatible with Predator 212 hemi and non hemi models. Minor grinding maybe required for fitment due to casting irregularities.
Note the output end in the product images, it's not for generators, not tapered, not threaded, not reduction type.
OEM quality for honda clone engines made in China.