Wheel Horse Lawn Mower S2-12B502 Parts

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.

Nylon insert locking nut. Used as part of the shear bolt assembly, as well as other locations within the equipment.

Briggs & Stratton starter gear (also called a pinion gear), 16-tooth, plastic. The starter gear engages the flyhweel to start the engine. If the teeth on the starter gear are worn out, the engine may not start.

Briggs & Stratton in-line fuel filter. If the fuel filter is clogged, it will restrict the flow of fuel to the carburetor. As a result, the engine may not start.

Gasket-float bowl

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.

Quick-turn oil drain valve

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.

Gasket-exhaust

Oil seal, magneto side

Clamp-hose

Briggs & Stratton voltage regulator. The voltage regulator sends the proper amount of voltage from the alternator to the battery to keep the battery charged. If the voltage regulator is defective, the battery may keep draining quickly.

Spark plug boot

Air filter. If the air filter is clogged or dirty, the engine might not start, might be hard to start, or might run roughly. This filter should be replaced periodically to ensure optimal engine performance.

Filter-pre cleaner