128T07-5226-B1 Briggs and Stratton Engine - Overview

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Seal-oil – Part Number: 399781S
$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.
Engine Recoil Starter Assembly – Part Number: 497680
$88.95
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Engine Recoil Starter Assembly
Part #497680
This authentic OEM starter assembly is designed for use with lawn and garden engines and is sourced directly from the original manufacturer to ensure quality and compatibility. The assembly includes a durable plastic shroud/housing, starter pulley, recoil spring, pull rope with grip, and the necessary hardware for installation. It functions as the primary mechanism for manually cranking and starting the engine. To complete the replacement, you’ll need a wrench. Simply remove the four screws and nuts securing the old starter assembly, then install the new one using the included hardware. This item is sold as a complete individual assembly.
Filter-a/c Foam – Part Number: 493537S
$11.95
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Filter-a/c Foam
Part #493537S
Genuine Manufacturer Sourced replacement part used on a variety of Briggs and Stratton Engines. This filter adds a second layer of protection against airborne-dirt particle ingestion. This is a Foam Pre-Cleaner which is Sold Individually. Please note a Paper Filter and a Cover are both Sold Separately.
Kit-needle/seat – Part Number: 398188
$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.
Seal-o Ring – Part Number: 270344S
$5.95
In Stock
Seal-o Ring
Part #270344S
This authentic OEM replacement part fits a variety of Toro and Briggs & Stratton engines. An O ring is used to retain pressure between rigid parts. Its flexible material allows it to create a tight seal. Many different sizes of O ring are used in these engines; consult manual to be sure of correct placement. Sold individually.
Key-flywheel – Part Number: 222698S
$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.
Rep Man-1 Cyl L-hd – Part Number: 270962
$51.95
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Rep Man-1 Cyl L-hd
Part #270962
This is a genuine item that is supplied directly from the original equipment manufacturer for Briggs and Stratton engines commonly installed on lawn and garden equipment. The repair manual contains easy to follow step-by-step instructions, diagnostic methods and other useful information to keep your engine running at peak levels. It is the manual that is being utilized by authorized Briggs & Stratton service centers. Keep in mind this high-quality item is sold individually.
Washer-sealing – Part Number: 271716
$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 issues 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.
Pin-piston/std – Part Number: 298909
$15.95
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Pin-piston/std
Part #298909
Starter Pawl-Ratchet – Part Number: 281505S
$5.95
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Starter Pawl-Ratchet
Part #281505S
This Genuine OEM ratchet pawl is a critical component designed to engage the recoil starting system with the engine, ensuring smooth and reliable starts. Manufactured from durable plastic, this replacement part is engineered to match the original specifications for a precise fit and dependable performance. Over time, a worn pawl can cause the recoil mechanism to slip, making it difficult to start the engine. Replacing it restores proper function and helps extend the life of your equipment. Sold individually, this part is ideal for routine maintenance or repair of compatible outdoor power tools.
Filter- A/C Cartridge – Part Number: 491588S
$12.95
In Stock
Filter- A/C Cartridge
Part #491588S
This is a replacement air filter/AC cartridge for your small engine. The air filter prevents dirt and debris from entering the engine. Over time, the air filter can become clogged or damaged, and this can lead to reduced performance. This air filter is approximately 4 inches wide and approximately 5 inches long. To replace the air filter, locate the air filter cover on the side of the engine, unscrew it, and remove the old filter. Be sure to clear out any dirt, clippings, or other debris that has found its way into the air filter assembly before you insert the new filter. Reattach the air filter cover, and secure it with the screws. This product is sold individually.
Engine Spark Plug Terminal – Part Number: 493880S
$5.95
Special Order
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.

Common Symptoms of the 128T07-5226-B1

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

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Mower was submerged in Hurricane Matthew
25 of 51 people found this instruction helpful.
  • Morris from HOPE MILLS, NC
  • A Bit Difficult
  • More than 2 hours
  • Wrench set
Total disassemble, clean out water and any rust. hone cylinder, wire brush where needed,reassemble with new rings,gaskets and seals and lucas oil product. Started on second pull. Mowed lawn. If you have never done this sort of work before, probably should not attempt.
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starter rewind cord broke
15 of 22 people found this instruction helpful.
  • Seikai from MARICOPA, CA
  • A Bit Difficult
  • 1- 2 hours
  • Nutdriver, Pliers, Screw drivers, Socket set, Wrench (Adjustable), Wrench set
I found the model number of the Briggs & Stratton engine on the inside of the engine housing. Ordered a new starter-rewind unit, as the old cord broke and the thing was well worn. The instructions were clear enough, but to get the old starter off I had to drill out four rivets, which just spin around when you try. I used a hacksaw, chisel , pliers, whatever worked on each rivet; this took a while. When they were finally removed, the new starter pull unit was relatively easy to install with the small nuts and bolts provided. On the Yard Machines log splitter, putting back the engine housing is quite tricky; you have to jostle the thing into place, get the pull handle above the cover and line up the bolt holes.
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blower housing on the customers log splitter broke.
1 person found this instruction helpful.
  • david from JERSEY SHORE, PA
  • Really Easy
  • 30 - 60 mins
blower housing on my brothers log splitter broke at the anchor points and caused the pull start to break and come apart. I was able to buy the parts and fix the log splitter for half the price of a new motor, saving him about $300.00.
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