Price Match GuaranteeLawn Boy Lawn Mower 81180/SERIAL: 3900001-3999999 Parts
Shop replacement repair parts for Lawn Boy Lawn Mower model 81180/SERIAL: 3900001-3999999
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.
Lock nut with nylon insert.
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. The filter screen is on the large side of the housing. The port on the large side goes to the fuel tank while the port on the small side of the housing goes to the carburetor.
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.
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
Fuel inlet hose connector
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.
Briggs and Stratton small engine electric starter kit.
Bracket, control
Oil seal, magneto side
Bearing-ball
Frequently Purchased Together For This Model
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