Shop replacement repair parts for Lawn Boy Lawn Mower model 10245

Briggs & Stratton Spark Plug (RJ19LM). If the engine does not start or runs poorly then the spark plug may be defective and will need replacement.

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.

Carburetor

Recoil Pulley w/Spring, Quantum (12 CID), 5HP (10 CID) Vertical Vanguard 625-675 Series