Shop replacement repair parts for Briggs & Stratton Small Engine model 422447/1251-01

Champion Spark Plug (RC12YC). The spark plug ignites the fuel and air mixture in the cylinder to power the engine. If the spark plug is burnt, fouled or damaged the engine may not start or may run rough.

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.

Flywheel key pack of three

Briggs & Stratton carburetor for 4-screw fuel pump mount. If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run poorly.

Ignition coil (or magneto armature). The ignition coil sends voltage to the spark plug while the engine is running. If the ignition coil is defective, the engine may not start.

Body-upper carb

50 pack of Flywheel Key 222698S. This key aligns the flywheel with the crankshaft for most Briggs & Stratton engines.

Body-lower carb

On-Off Switch

Carburetor

Body-lower carb

Lower carburetor body