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Lawn mower flywheel key (woodruff key). The flywheel key aligns the flywheel in the correct position on the crankshaft. If the engine stops suddenly due to hitting a hard object, the flywheel key shears in half to prevent damage to the engine. If the flywheel key is broken, the engine won't start.
Genuine OEM Part - Manufacturer #612066
Order by 8:00 PM ET, this part ships TODAY!
Flywheel Key
Genuine OEM Part - Manufacturer #X-42-15-S
Order by 8:00 PM ET, this part ships TODAY!
Flywheel key
Genuine OEM Part - Manufacturer #X-286-17-S
Order by 8:00 PM ET, this part ships TODAY!