Shop replacement repair parts for Lawn Boy Lawn Mower model 10735B

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.

Filter Cover Retainer

Ret ring

Screw

Screw


Ring-retaining

Screw - hex


Spring

Washer

Nut

Washer


Washer-thrust