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233431-0171-99 Briggs and Stratton Engine - Overview

Diagrams for 233431-0171-99

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Lawn Mower Spark Plug – Part Number: 796112S
$6.40
In Stock
Lawn Mower Spark Plug
★★★★★
★★★★★
(1)
Part #796112S
This is an OEM replacement part and is sold individually. Its propose is to deliver an electric current from an ignition system to the combustion chamber of a gas fueled engine. It will ignite the air fuel mixture by the spark. Spark Plugs will usually have to gapped to the manufactures specifications found in the owners manual. Over time a Spark Plug will become fouled because the air/fuel ratio may be set wrong,worn piston rings, carbon build up and other factors. It is better to replace a fouled spark plug, rather then trying to clean it.
Engine Oil Seal – Part Number: 391086S
$8.09
In Stock
Engine Oil Seal
★★★★★
★★★★★
(1)
Part #391086S
The Oil Seal is a manufacturer-approved rubber part which provides a seal between the crankcase and crankshaft by attaching around the axle shaft on the crankhouse housing. Installation is rated as "Medium" difficulty and requires a screw driver, wrench set and seal puller. A broken seal will cause a leak, and the part must be replaced. Refer to your make, model and diagram to ensure you're choosing the right part. This part comes in black and gray.
Filter Fuel Mega Pack – Part Number: 394358B
$6.40
In Stock
Filter Fuel Mega Pack
Part #394358B
This Fuel Filter is a white plastic part attached within the fuel delivery system between the fuel tank and carburetor. Installation is rated as "Easy" and requires a set of pliers and a screwdriver. If broken, there may be a leak or blockage and the part should be replaced. The part may also need to be replaced according to manufacturer's specifications, and is a manufacturer-approved part. Refer to your make, model and diagrams to ensure this part is correct.
Spring-rewind Str – Part Number: 490179
No Longer Available
Spring-rewind Str
Part #490179
This rewind starter spring or as it is also known, recoil spring, rewinds the pull robe back into the starter housing of your engine. The spring is made of metal, silver colored, and sold individually. Over time, you may notice that you are having trouble retracting your pull cord, which could be a symptom of the rewind starter spring failing due to fatigue or wear. Replacing this part is a repair our customers found easy. Locate and replace the start spring inside the starter housing; no special tools are required for this job.
Key-flywheel – Part Number: 222698S
$6.40
In Stock
Key-flywheel
★★★★★
★★★★★
(1)
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.
Clutch-starter – Part Number: 399671
$48.09
In Stock
Clutch-starter
★★★★★
★★★★★
(2)
Part #399671
Hard starting may come from the recoil system instead of the carburetor or spark plug. If the rope pulls but the engine does not turn, the starter clutch may be worn, dirty, or jammed. The clutch turns the crankshaft during starting and lets go when the engine runs. First inspect the rope, rewind spring, pulley, flywheel screen, and clutch bearing. Confirm fit with the complete engine number. Remove the spark plug wire, wait for hot parts to cool, and keep dirt out of the bearing area. Test free movement before putting the shroud back on.
Kit-carb Overhaul – Part Number: 394693
$37.99
In Stock
Kit-carb Overhaul
Part #394693
An engine that surges, stalls, or will not stay running can have dirt or worn seals inside its float carburetor. This rebuild kit contains gaskets and small service pieces for restoring the carburetor rather than replacing the complete unit. Inspect the fuel supply and ignition system first, then confirm the engine identification and carburetor design. Work only on a cool engine in a ventilated area. Drain all fuel, disconnect the spark plug wire, and keep sparks and cigarettes away. Photograph the linkages, clean passages without enlarging them, install each gasket in the correct order, and check carefully for leaks before starting the engine.
Line-fuel – Part Number: 791745
$16.54
In Stock
Line-fuel
Part #791745
This fuel line is compatible with several different makes and models of small engine equipment and is sold as an individual part. Equipped with the securing clamp, this rubber fuel line is used to transfer fuel from the fuel tank to the carburetor, and over time and due to exposure of gas, this fuel line can become brittle and crack, requiring a replacement. If you find your equipment is performing worse, check the fuel line for any visible signs of damage. To replace the fuel line, you will need to disconnect the spark plug and drain the fuel from your equipment, before simply removing the old line and installing the new one and reassembling the rest of the motor.
Engine Oil Seal – Part Number: 291675S
$9.32
In Stock
Engine Oil Seal
Part #291675S
It is a genuine item that is supplied by the original equipment manufacturer for Briggs and Stratton engines commonly installed on a variety of lawn and garden equipment. This is a special component that provides a tight seal for the PTO side of the crankcase. Over time it may wear out and begin to crack eventually requiring a replacement. Check the appropriate diagrams for your specific model to ensure the correct installation of the new seal-oil. To perform this repair you will need a variety of tools such as a screwdriver, a wrench set, pliers and a tool to pick out the old seal. Make sure to drain the oil before starting this repair. Keep in mind, one durable rubber part is included.
Engine Spark Plug Boot – Part Number: 66538S
$6.40
In Stock
Engine Spark Plug Boot
Part #66538S
This spark plug boot is a genuine OEM Briggs & Stratton replacement designed to fit securely over the spark plug, protecting the connection from moisture, dirt, and debris. Its durable, elbow-style design helps ensure reliable ignition and easy installation, making it an ideal replacement when a cracked, loose, or worn boot causes hard starting, misfires, or inconsistent engine performance.
Engine Breather Gasket – Part Number: 27803S
$6.40
In Stock
Engine Breather Gasket
Part #27803S
This is a high-quality manufacturer-sourced part which is made for use with Briggs and Stratton engines commonly installed on lawn and garden equipment. It helps to distribute the pressure evenly and provide a tight seal for the breather. Over time it may become brittle and begin to crack eventually requiring a replacement. For the proper application please refer to the appropriate diagrams of your model. This high-quality part is made of durable composite material and is sold individually. You will need a screwdriver and a wrench set to remove and reattach the breather.
Engine Screw – Part Number: 692198
$8.01
In Stock
Engine Screw
Part #692198
This OEM engine screw is a genuine Briggs & Stratton replacement fastener designed for secure, vibration-resistant attachment of engine components in small gasoline engines and outdoor power equipment. Manufactured to exact factory specifications, it provides proper thread engagement and clamping force to help prevent loosening, reduce vibration, and maintain long-term engine reliability under operating stress. Built with durable, corrosion-resistant materials for extended service life, it is an ideal replacement when original screws are missing, stripped, or worn, helping ensure safe assembly, consistent performance, and proper engine operation.

Common Symptoms of the 233431-0171-99

How this model fails, and the parts that fix it.