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Briggs & Stratton Parts

Armature-magneto 590454

OEM part for: Briggs & Stratton Engines, Toro

Part Number: 590454


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Armature-magneto - 590454:Briggs & Stratton Engines 360 View
Armature-magneto - 590454:Briggs & Stratton EnginesArmature-magneto - 590454:Briggs & Stratton EnginesArmature-magneto - 590454:Briggs & Stratton Engines 360 View
In Stock
Ships within 1 business day
Medium 30-60 minutes (10 rated repairs)?
OEM: Original Equipment Manufacturer ?
Briggs & Stratton Engines Toro

Product Description ?

This replacement magneto is specially designed for use with Briggs and Stratton engines installed on Toro lawn mowers. The purpose of this item is to supply electricity for the ignition system. It is sold individually. Please note a spark plug boot is sold separately.

Please note, steps to replace this part may differ based on your equipment. However, the basic steps would be the same. To complete this repair you should need a screwdriver set.

• Remove the housing/covers from the unit
• Remove the spark plug
• Bind the cylinder
• Disconnect the wires
• Remove old ignition coil
• Install new ignition coil
• Set the gap
• Reassemble and test the unit

  • Classification: Part
  • Weight: 0.10 lbs.
  • Shipping: Ships Worldwide

Compatibility

This is the official OEM part for the following brands:

  • Briggs & Stratton Engines
  • Toro

This item works with the following types of products:

  • Blower
  • Engine
  • Generator
  • Lawn Mower
  • Vacuum

This part replaces obsolete part #: 802574, 799381, 790817, 692605

Repair Videos ?

Watch the Repair Video for Armature-magneto

Customer Part Reviews ?

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  • Great site, I moved it to my desktop, I do all my repairs
    Part was right on.
    Guest - June 1, 2023 Verified Purchase
    Very good seller!
    Smooth transaction,great seller and communicator.Shall do business again.
    iGlobal - June 10, 2021 Verified Purchase
    Just what we needed!
    shipped fast, part worked great, thank you!
    Guest - October 2, 2019 Verified Purchase
    Perfect fit
    After several tries elsewhere, ereplacements had the perfect fit part for an old mower
    Guest - May 15, 2019 Verified Purchase
    The right parts on time
    The coil arrived and is installed along with a drive assy. for the Husky Mower. The drive wheel assy is much better than the original! It's great to have this mower which was quite expensive back in 2000 running well again! Thanks R.P. for making it easy. Ordering parts at the local power shops is always a pain in the rear.
    steve - April 25, 2019 Verified Purchase

    Questions & Answers ?

    Our customer Service team is at the ready daily to answer your part and product questions.

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    We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.

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    Questions & Answers for Armature-magneto


    Looking for an ignition coil for Briggs And Stratton mower. Will part 590454.Parts list indicated part 333.
    Barry for model number 12F802-1975-E1 asked on 2022-03-30
    Hello Barry, Thank you for contacting us. We have researched the model you have provided and have found the part you are looking for is Part Number: 590455. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
    eReplacementParts Team March 30, 2022
    Coil
    Billie for model number 12h802 1937-E1 asked on 2022-08-08
    Hello Billie, thank you for your question. Based on the model number, the manufacturer recommends to order the Air Vane 790848 at the same time you order the Coil 590454. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you.
    eReplacementParts Team August 08, 2022
    I have a Murray push mower with a B/S 650 series engine. Is Armature-Magneto part #59054 the correct one for my engine?
    Dean for model number 124t02-0301-b1 asked on 2022-08-08
    Hello Dean, Thank you for contacting us. We have researched the model you have provided and have found the part you are looking for is Part Number:590454. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
    eReplacementParts Team August 08, 2022
    Is the part # 590454 the right magneto for my mower?
    Denny for model number 12H802 1952-B1 asked on 2022-04-25
    Hello Denny, thank you for writing. Yes, the number 590454 you had chosen is compatible with your model. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you.
    eReplacementParts Team April 25, 2022

    Customer Repair Instructions ?

    All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.

    Medium 30-60 minutes (10 rated repairs)?

    No spark to spark plug

    Kevin - May 25, 2016
    👍 17 of 19 people found this instruction helpful
    Tool Type

    Lawn Mower

    Difficulty

    Easy

    Time

    15-30 minutes

    Tools Used

    Screwdriver, Socket set, feeler gage

    Take plastic cover off then take metal cover off and unplug spark plug wire. Remove both screws that hold the armature then unhook the start/ stop switch wire. Install the new one in the reverse order just make sure the flywheel is clean of rust and oils. And the gap between the armature and the flywheel magnets is right I used a feeler gauge but you can use the cardboard package that the part came in for the gauge.
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    No Spark

    James - June 4, 2017
    👍 8 of 8 people found this instruction helpful
    Tool Type

    Lawn Mower

    Difficulty

    Medium

    Time

    15-30 minutes

    Tools Used

    Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver, Shim gauge

    Removed fan shroud
    Remove and replace ignition coil and set clearance at 0.010
    New spark plug gapped at 0.025
    Fill gas tank and start...
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    No fire to spark plug, needs new coil (magneto)

    Donald - July 17, 2016
    👍 6 of 7 people found this instruction helpful
    Tool Type

    Lawn Mower

    Difficulty

    Medium

    Time

    15-30 minutes

    Tools Used

    Screwdriver, Socket set

    Removed air cover(motor cowl) and starter (pull starter), removed coil from motor reinstalled new coil with piece of paper from coil box as this is adjustment for air gap between the coil and the flywheel tightened down coil plugged in kill wire to coil and reinstalled air and starter items put spark plug boot on end of spark plug clip and plugged it back on to spark plug in motor refiled fuel tank and started the mower up to make sure it starts and runs.
    PS the reason for the paper from coil box is to allow the magnet on the fly wheel to pass and create the magnetic field necessary to create the spark that the spark plug uses to fire the fuel in the piston chamber that allows you to mow your lawn.
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    Ed - July 28, 2018
    👍 2 of 2 people found this instruction helpful
    Tool Type

    Lawn Mower

    Difficulty

    Easy

    Time

    30-60 minutes

    Tools Used

    Screwdriver, Socket set, Nutdriver

    Removed engine covers, moved gas tank and oil fill to the side. Cleaned magnets on flywheel. R&R magneto cool using business cards to establish the gaps. Reassembled gas tank, oil filler/dip stick, cover, starter recoil. Primed carb, pulled starter rope a few times and it started right up.
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    No spark was being generated by the magneto.

    Hugh - September 13, 2018
    👍 1 of 1 people found this instruction helpful
    Tool Type

    Engine

    Difficulty

    Medium

    Time

    30-60 minutes

    Tools Used

    Screwdriver, Pliers, Socket set

    1. Removed the engine covering to access the magneto.
    2. Removed the old magneto.
    3. Attached the new magneto.
    4. Adjusted the spacing between the magneto and flywheel..
    5. Filled fuel tank with gasoline.
    6. Set choke, pulled rope starter a few times and engine started..
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    No spark.

    Robert - July 26, 2017
    👍 1 of 1 people found this instruction helpful
    Tool Type

    Lawn Mower

    Difficulty

    Easy

    Time

    1-2 hours

    Tools Used

    Socket set

    I disconnected the fuel tank and set it aside without detaching the fuel line.
    Then I removed the blower cover and replaced the armature using a file card for a spacer. Then back together and it started first pull.
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    Blew a head gasket

    Joe - June 24, 2016
    👍 1 of 1 people found this instruction helpful
    Tripped head off, inspected all parts, cleaned carburetor bowl while I had it off the engine.
    I checked to make sure head and cylinder surface wasn't warped, de-carboned piston top and head. Re-assembled.
    This type of repair is pretty straight forward.
    If your new to this, keep nuts and bolts organized, and it goes easy!!
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    Lawn mower would not start - no spark from spark plug

    Thomas - September 25, 2020
    Tool Type

    Lawn Mower

    Difficulty

    Medium

    Time

    30-60 minutes

    Tools Used

    Screwdriver, Pliers, Socket set, Nutdriver

    1. Removed plastic motor cover, plastic fuel tank, and air filter housing
    2. Removed oil dipstick holder, metal motor cover, and spark plug
    3. Removed old magneto coil
    4. Installed new magneto coil using printer paper to space from flywheel
    5. Reattached new spark plug boot, metal motor cover, and oil dipstick holder
    6. Tested magneto for good spark
    7. Reinstalled air filter housing, plastic fuel tank, and plastic motor cover
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    Old John Deere mower stopped working

    Joel - May 16, 2019
    Tool Type

    Lawn Mower

    Difficulty

    Easy

    Time

    Less than 15 minutes

    Tools Used

    Socket set, Nutdriver

    1. Tested for presence of spark-none found
    2. Searched for model number on front of mower
    3. Ereplacements had correct replacement magneeto for my model number (local repair shops did not have the part)
    4. Removed fuel tank and top cover, removed old magneeto
    5. Installed new magneeto and set proper gap between magneeto and flywheel using a business card.
    6. Replaced cover and fuel tank, sprayed a little starter fluid and off she ran!
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    had no spark

    Robert - July 29, 2018
    👍 1 of 2 people found this instruction helpful
    Tool Type

    Lawn Mower

    Difficulty

    Easy

    Time

    30-60 minutes

    Tools Used

    Socket set, Wrench Set, Nutdriver

    1. Removed starter
    2. Removed gas tank
    3. Removed old Armature-Magneto
    4. Install new Armature-Magneto
    5. Adjusted air gap with a business card
    Did you find this story helpful?
    Thanks for voting and helping fellow customers!

    OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.

    Learn More

    Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.

    Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.

    All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.

    All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.

    Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.

    All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.

    This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.

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