Part Location Diagram of 590454 Briggs and Stratton Armature-Magneto
See part B-333 in the diagram
Replacing your Briggs and Stratton Engine Armature-Magneto
( Grid squares measure 1x1 inch )

Armature-Magneto 590454

Manufactured by:
Briggs and Stratton
ERP Number:
ERP9044018
Part Number:
590454
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

30 - 60 mins 

(10 rated repairs) ?

Does this part fit my model?

Need help finding your model number?

Product Description

?

This genuine replacement magneto is designed for Briggs & Stratton engines used in Toro lawn mowers. It plays a vital role in the ignition system by generating the electrical current needed to fire the spark plug. Made from high-quality materials, this part is sold individually. Note: The spark plug boot is sold separately. To replace the magneto, begin by removing the housing or covers from your mower. Next, remove the spark plug and bind the cylinder to prevent it from turning. Disconnect the ignition wires and remove the old ignition coil. Install the new magneto, carefully setting the correct air gap between the coil and the flywheel. Once installed, reassemble the unit and test for proper operation. A screwdriver set is recommended for this repair.

Frequently Purchased Together

?

Troubleshooting

This part fixes the following symptoms:
  • Will Not Start
This part works with the following brands:
  • Briggs and Stratton
  • Toro
  • Craftsman
  • Lawn Boy
  • Cub Cadet
  • Simplicity
This part works with the following products:
  • Engine
  • Lawn Mower
  • Pressure Washer
  • Chipper Shredder
  • Leaf Blower / Vacuum
Part# 590454 replaces these:
493237, 590454, 591932, 692605, 790817, 799381, 802574,

Videos For installing this part.

?
Replacing your Armature-Magneto

Customer Part Reviews

?
5.0
Average Rating (out of 5):
★★★★★
★★★★★
(5 Reviews)
Click to filter by ratings:
  • 5 stars
    5
  • 4 stars
    0
  • 3 stars
    0
  • 2 stars
    0
  • 1 star
    0
  • 1
Sort by:  
Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.

Questions & Answers

?

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

Ask our experts a question about this part and we'll get back to you as soon as possible!

Ask our Team

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

Does this fit my product?
  • 1
Sort by:  
Sorry, we couldn't find any existing answers that matched.
Try using some different or simpler keywords, or submit your new question by using the "Ask a Question" button above!
is this the ignition coil
Arturo For model number 122k02-0167-e1 - May 2, 2023

Hello Arturo, Thank you for writing. This Ignition Coil for this model is the Magneto Armature Part Number: 590454. We hope this helps!

eReplacementParts Team
May 2, 2023

Did this question help you?
Thank you for voting!
Coil
Billie For model number 12h802 1937-E1 - August 8, 2022

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 8, 2022

Did this question help you?
Thank you for voting!

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.

Easy 

30 - 60 mins 

(10 rated repairs) ?
  • 1
Sort by:  
Sorry, we couldn't find any existing installation instruction that matched.

No spark to spark plug

Kevin from Jericho , Vermont

19 of 19 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers, Socket set
Parts Used:
590454
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 g auge but you can use the cardboard package that the part came in for the gauge.
Did you find this story helpful?
Thank you for voting!

No Spark

James from Phillips, Wisconsin

8 of 8 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver, Pliers, Screw drivers, Socket set, Wrench set
Parts Used:
796112S, 590454
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?
Thank you for voting!

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

Donald from Clayton, Washington

7 of 7 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers, Socket set
Parts Used:
590454
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 an d 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?
Thank you for voting!

had no spark

Robert from Spring Grove, Pennsylvania

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Socket set, Wrench set
Parts Used:
590454
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?
Thank you for voting!

No spark.

Robert from New Vineyard, Maine

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
1- 2 hours
Tools:
Socket set
Parts Used:
590454
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?
Thank you for voting!

Weak spark, wouldnÆt start

Ed from Albert Lea, Minnesota

2 of 2 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Screw drivers, Socket set
Parts Used:
590454
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?
Thank you for voting!

Blew a head gasket

Joe from Olyphant, Pennsylvania

2 of 2 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Nutdriver, Screw drivers, Socket set, Wrench set
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?
Thank you for voting!

No spark was being generated by the magneto.

Hugh from Sugar Hill, Georgia

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Pliers, Screw drivers, Socket set
Parts Used:
590454
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?
Thank you for voting!

Lawn mower would not start - no spark from spark plug

Thomas from Indianapolis, Indiana

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Pliers, Screw drivers, Socket set
Parts Used:
692076, 590454
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 hold er
6. Tested magneto for good spark
7. Reinstalled air filter housing, plastic fuel tank, and plastic motor cover
Did you find this story helpful?
Thank you for voting!

Old John Deere mower stopped working

Joel from Lake Oswego , Oregon

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Nutdriver, Socket set
Parts Used:
691061, 590454
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 mag neeto 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?
Thank you for voting!
  • 1

Model Cross Reference

This part works with the following models:
ERP Number: ERP9044018
Manufacturer Part Number: 590454
Brand Model Number Description
Briggs and Stratton 01050-0 Pressure Washer - Briggs & Stratton Pressure Washer Model 01050-0 (010500, 01050 0) Parts
Briggs and Stratton 01052-0 Pressure Washer - Briggs & Stratton Pressure Washer Model 01052-0 (010520, 01052 0) Parts
Briggs and Stratton 01053-0 Pressure Washer - Briggs & Stratton Pressure Washer Model 01053-0 (010530, 01053 0) Parts
Briggs and Stratton 01133-0 Generator - Briggs & Stratton Generator Model 01133-0 (011330, 01133 0) Parts
Briggs and Stratton 01211-0 Pressure Washer - Briggs & Stratton Pressure Washer Model 01211-0 (012110, 01211 0) Parts
Briggs and Stratton 01282-0 Pressure Washer - Briggs & Stratton Pressure Washer Model 01282-0 (012820, 01282 0) Parts
Briggs and Stratton 01433-0 Pressure Washer - Briggs & Stratton Pressure Washer Model 01433-0 (014330, 01433 0) Parts
Briggs and Stratton 01433-1 Pressure Washer - Briggs & Stratton Pressure Washer Model 01433-1 (014331, 01433 1) Parts
Briggs and Stratton 01433-2 Pressure Washer - Briggs & Stratton Pressure Washer Model 01433-2 (014332, 01433 2) Parts
Craftsman 0505-0-580741380 Pressure Washer - 0505-0 - 580.741380, 1,500 Psi (Rev 3 5/20/96) Craftsman
Craftsman 0764-0-580762250 Pressure Washer - 0764-0 - 580.762250, 2,250 Psi Craftsman
Briggs and Stratton 0795-0 Pressure Washer - Briggs & Stratton Pressure Washer Model 0795-0 (07950, 0795 0) Parts
Craftsman 0795-0-580677220 Pressure Washer - 0795-0 - 580.677220, 2,250 Psi Craftsman
Briggs and Stratton 095722-0100-99 Engine - Engine
Briggs and Stratton 095722-0102-99 Engine - Engine
Briggs and Stratton 095722-0122-99 Engine - Engine
Briggs and Stratton 095722-0123-99 Engine - Engine
Briggs and Stratton 095722-0124-99 Engine - Engine
Briggs and Stratton 095722-0125-99 Engine - Engine
Briggs and Stratton 095722-0200-99 Engine - Engine
Briggs and Stratton 095722-0201-99 Engine - Engine
Briggs and Stratton 095722-0202-99 Engine - Engine
Briggs and Stratton 095722-0203-99 Engine - Engine
Briggs and Stratton 095722-0204-99 Engine - Engine
Briggs and Stratton 095722-0205-99 Engine - Engine
Briggs and Stratton 095722-0206-99 Engine - Engine
Briggs and Stratton 095722-0207-99 Engine - Engine
Briggs and Stratton 095722-0208-99 Engine - Engine
Briggs and Stratton 095722-0210-99 Engine - Engine
Briggs and Stratton 095722-0211-99 Engine - Engine