This replacement armature-magneto is specially designed for use with Briggs and Stratton engines commonly installed on Toro lawn and garden equipment. It is an authentic part sourced directly from original equipment manufacturer. The armature-magneto also known as an ignition module produces pulses of high voltage for the spark plugs. This item includes (1) armature-magneto and (1) lead wire per order. To complete this repair you will need screwdriver set.
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★★★★★
★★★★★
Part did not fit.
This Briggs and Stratton part did not fit. It was the correct replacement part number according to Briggs and Stratton webpage but did not fit. This motor was an old flathead design and has been unavailable for years.
Ereplaceparts handled the return in a most professional manner.
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Guest - October 9, 2019
Verified Purchase
★★★★★
★★★★★
Engine won’t start no spark
I got the part quick and it was easy install engine running good now
David - June 28, 2021
Verified Purchase
★★★★★
★★★★★
Did not match the picture of the one I ordered
The edger is working again. But it did not have the slot for the governor to slide over like the picture showed when I purchased it.
David - October 20, 2023
Verified Purchase
★★★★★
★★★★★
waited three months for a part for a 30 year old motor
After a 3 month wait for the mag assembly for my edger, I now have a motor that runs better than new. I had no doubt that as soon as the part was available I would get it. It was worth with the wait. I received a monthly update on the status of my order, I liked that.
Jay - September 26, 2019
Verified Purchase
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Tested if there was a spark , there was no spark. Replaced spark plug, still no spark. Replaced the Magneto, the engine worked normal.
I learned how to replace the Magneto by looking at the assembly drawing of the engine, available on ereplacementparts web site.
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My lawn mower would run for about 20 minutes under load and then quit.
It was a very easy repair. I removed the cover from the top of the engine, then I removed the small bolt holding the engine governor air flow sensor, then I removed the last bolt remaining in the magneto. I unplugged the spark plug wire, lifted the magneto and unplugged the low tension wire from underneath. I reversed the procedure to ins
... Read moretall the new magneto with one exception, I tore two small pieces of cardboard from the lid of the box that the part came in to use as spacers between the magneto and the flywheel of the mower. After I had the bolts for the magneto snugged down I removed the cardboard spacers and finished assembly.
1. Diagnosed \"not running\" as a \"no spark\" problem
2. Ordered new armature magneto (AM) and spark plug boot from eReplacementParts.com
3. Read included directions
4. Put mower on workbench, disconnected spark plug cable, removed top cover and cleaned.
5. Removed spark plug. Removed 2 hex bolts and wire, lifted
... Read more old AMout.
6. Rotated mower flywheel to opposite side per directions, attached wire to new AM, bolted into place per instructions, leaving big space between new AM and flywheel.
7. Again per instructions, rotated mower flywheel so that magnets face AM. Placed 0.010-inch thick card (included with AM) between AM and flywheel.
8. Loosened and re-tightened bolts. Now there is a 0.010-in gap between the AM and flywheel.
9. Reassembled. Put mower on floor and connected spark plug.
10. Gave a mighty pull and mowed my lawn.
My edger is 27 years old, so the difficult part was finding the correct magneto. It comes out with two small bolts. I re-terminated the spark plug terminal to shorten the plug wire. The magneto comes with a few spare parts. Starts on first or second pull. Three bolts on the pull start assembly had to come out and the pull cord assembly an
... Read mored shroud had to be pulled. Very easy to do. I saved $240.00 on a new edger.
Checked for spark.
No spark.
Replaced spark plug.
Checked kill switch for grounding out.
It was fine.
Still no spark.
Removed cover to get to the coil.
Removed coil clean coil and fly wheel and reassembled with .010 air space between coil and fly wheel.
Got spark and engine started, but o
... Read morenly worked for a while.
Replaced the coil and wire. Works fine.
If you suspect the mag and have not replaced the plug. Do that first.
Plugs wear out and can\'t be cleaned anymore.
When replacing the governor air vane, the screw made a dimple in the mag surface which caused it to bind.
I added a washer under the screw to stop this. That raised the assembly and caused it to catch on
... Read more the starter shroud. I hammered that out to relieve.
The old air vane interfered with the new mag. I cut a notch in the air vane to clear.
Hardest part was repairing the governor carb springs. Small one is the idle. Bend opp end tab to adjust idle which that spring alone mounted. Large spring is high/low.
Adjust to raise speed when in position. Look for stretched spring coils. Fix by wrapping copper wire strands to join them together and make spring shorter.
This will increase tension and make engine speed higher if needed.
Removed shroud and replaced armature-magneto coil. I used a business card to set the gap between the coil and the flywheel, rotate the flywheel (with card in place) until magnets on flywheel are aligned with the coil, this will pull the coil towards the flywheel with the proper spacing, tighten mounting bolts on the coil, rotate flywheel
... Read more and remove card, reassemble shroud and you are done.
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Model Cross Reference
This part works with the following models:
ERP Number: ERP9035906
Manufacturer Part Number: 591420
This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
New stock is on the way! On order parts usually ship within 7 business days.
Item is not in stock and usually ships 10-15 business days from the time you place your order.
This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
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