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Briggs & Stratton flywheel 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.

Clamp-hose

Flywheel key pack of three

Nut 1/4-20 nylock

Bolt, 5/16 -18 x .75

Nut 5/16-18 gr5

Screw

Retainer ring

Genuine Briggs & Stratton 691005 flange screw. (21/32" Long)

Screw

Screw

Screw

Key-flywheel

Clip retainer yz

Briggs & Stratton self-locking cotter pin, 1/4".
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