12AV Craftsman Lawn Mower - Parts
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Guard-muffler
Part #594109
Muffler
Part #595516
Rod-connecting
Part #594089
This connecting rod is a genuine OEM replacement designed for small engine applications. It links the piston to the crankshaft, playing a key role in smooth engine movement and reliable power transfer. Built for durability and precise fit, it’s an ideal replacement when internal wear or damage affects engine performance or causes excessive vibration.
Sump-engine
Part #594101
This engine sump serves as the lower crankcase, designed to safely hold engine oil while sealing and protecting the bottom of the engine. Made from durable cast aluminum for strength and heat dissipation, it supports proper lubrication, helps prevent oil leaks, and maintains overall engine integrity. Ideal for replacing a cracked or damag...Read moreed sump, it restores reliable lubrication and dependable engine operation during regular use.
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Tube-breather
Part #596501
This breather tube is designed for small engines to support proper crankcase ventilation by routing excess pressure, oil mist, and fuel vapors back into the intake system. By preventing pressure buildup inside the engine, it helps promote smooth operation, reduce emissions, and support long-term engine durability. It’s a simple, direct re...Read moreplacement for maintaining reliable performance when a breather tube becomes brittle, clogged, or damaged.
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Piston Assembly
Part #594099
Camshaft
Part #594090
Base-air Cleaner
Part #595661
This is an authentic OEM replacement part and is found on a Briggs and Stratton small engine. The air cleaner base cover holds the air filter element, please note the air cleaner base is sold separately of the element. It is made of a high-quality plastic.
Screw
Part #594115
Cover-air Cleaner
Part #594106
This air cleaner cover is designed to securely protect the engine’s air filter from dirt, dust, and debris, helping maintain proper airflow and consistent engine performance. Made from durable plastic for long-lasting use, it supports reliable operation and helps extend engine life. Ideal for replacing a cracked or missing cover, it restores proper filtration and dependable performance during regular equipment use.
Plug-spark
Part #591039
Jet-main
Part #594063
Designed to fine-tune fuel delivery within small-engine carburetors, this main jet helps regulate the flow of fuel to achieve the correct air-fuel mixture during operation. Proper jet function supports smooth starting, steady power output, and efficient performance, particularly in applications that require precise fuel metering such as h...Read moreigh-altitude operation. Made from durable, corrosion-resistant materials, this component is ideal for replacing a clogged or worn jet to restore consistent engine performance and reliable operation.
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