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121S00 (0005-2415) Briggs and Stratton Engine - Overview
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$222.95
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Sump-engine
Part #498983
$11.95
In Stock
Kit-needle/seat
Part #398188
Genuine manufacturer approved carburetor needle valve for lawn and garden equipment engines. This item includes the seat. The needle valve opens and closes to control the flow of fuel into the carburetor. Make sure to disconnect the spark plug wire and drain all gasoline from the carburetor and fuel tank before starting a repair.
$13.95
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Seal-oil
Part #399781S
This is an authentic replacement part manufactured for use with small engines. Seals can deteriorate overtime, and it is recommended to replace worn seals when servicing an engine. This seal is the lower seal in the engine's sump, the seal is sold individually.
$5.95
In Stock
Key-flywheel
Part #222698S
This is a Genuine OEM replacement part used on a variety of Lawn and Garden equipment. The key helps to secure Flywheel in place. This is a Metal Key and it is Sold Individually. You would need Pliers to replace this item.
$6.95
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Washer-sealing
Part #271716
This authentic OEM sealing washer is designed for your lawn equipment to create a tight seal within the carburetor body, preventing fuel or air leaks. If you notice any signs of leaks, such as dripping fuel or hissing sounds, it may indicate a faulty or worn-out sealing washer. Additionally, you might be experiencing engine performance is...Read moresues like rough idling or difficulty starting. To replace the sealing washer, ensure that the machine is off and that the engine has cooled down. Remove the air breather cover and the filter itself, following the instructions provided in your user manual to access the carburetor. Depending on your specific equipment model, you may need to detach the springs from the carburetor choke mechanism, disconnect the fuel line and fuel tank, remove the choke lever, and detach the air breather base. Once you have located the carburetor, carefully unthread the main jet from the bottom of the carburetor bowl. Finally, slide off the old sealing washer, ensuring you take note of its positioning for accurate replacement. Please note that this sealing washer is sold individually.
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$15.95
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Pin-piston/std
Part #298909
$5.95
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Engine Spark Plug Terminal
Part #493880S
This spark plug terminal is supplied directly from the original equipment manufacturer. The metal terminal is designed to fasten the spark plug to the engine lead wire. This component is sold individually, and needle nose pliers are helpful with the repair. Please refer to the appropriate diagrams of your engine model for the proper application of this hardware.
$9.95
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Stud
Part #793479
$24.95
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Adjuster-Rocker Arm
Part #796631
$23.95
In Stock
Filter-air Cleaner Ca
Part #795066
This high quality replacement air cleaner cartridge is specially designed for use with Briggs and Stratton engines. It is an authentic OEM sourced item, not an aftermarket equivalent. It is utilized to filter out dust and debris from contaminating the carburetor and the engine. This filter is made from pleated paper in a plastic case and ...Read moreit is sold individually. Please note, the foam filter is sold separately. Replacing this air cleaner cartridge is a simple task that does not require any tools. • Remove the air cleaner cover • Replace the cartridge • Secure the cover
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$6.95
In Stock
Lawn Mower Starter Rope Grip
Part #281434S
$20.95
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Gasket-cylinder Head
Part #796475
This is an authentic replacement part manufactured for use with small engines. The cylinder head gasket forms a seal between the cylinder head, and cylinder. It is recommended to replace gaskets when servicing the cylinder head to ensure a good seal when it is reassembled. This cylinder head gasket is sold individually.
Common Symptoms of the 121S00
How this model fails, and the parts that fix it.
See how others fixed this model. Time, tools, difficulty, and steps that lead to victory!
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