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16365732-1-M-Husqvarna-545221701-Flywheel
Part Location Diagram of 545221701 Husqvarna Flywheel
See part F-3 in the diagram
( Grid squares measure 1x1 inch )
16365732-1-S-Husqvarna-545221701-Flywheel 16365732-2-S-Husqvarna-545221701-Flywheel 16365732-3-S-Husqvarna-545221701-Flywheel Part Location Diagram of 545221701 Husqvarna Flywheel

Flywheel 545221701

Manufactured by:
Husqvarna
ERP Number:
ERP16365732
Part Number:
545221701
Original Equipment Manufacturer ?
$77.30
★★★★★
★★★★★
7 Reviews
In Stock
Delivers in 3-5 Business Days!

A Bit Difficult 

1- 2 hours 

(11 rated repairs) ?

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Description Troubleshooting Reviews Questions & Answers Repair Instructions Model Cross Reference

Product Description

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This is an original replacement part manufactured for use with handheld leaf blowers. The flywheel has magnets on its side that create an electric charge as the magnets pass the ignition module. The electric charge is sent to the spark plug to fire the air-fuel mix in the cylinder. The flywheel fits on the crankshaft by a key that aligns with a keyway on the crankshaft, this allows for proper firing timing. If the key on the flywheel is broken it can cause misfires or will not start at all. This flywheel is sold as an individual replacement part.

Troubleshooting

This part works with the following brands:
  • Weed Eater
  • Craftsman
  • Poulan
  • Husqvarna
  • Jonsered
  • Paramount
This part works with the following products:
  • Trimmer
  • Leaf Blower / Vacuum
  • Hedge Trimmer
  • Edger
Part# 545221701 replaces these:
  • 530039148
  • 530039149
  • 530049062
  • 530054115
  • 530069886
  • 530071487
  • 545005101
  • 545197301
  • 545221701
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Customer Part Reviews

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5.0
Average Rating (out of 5):
★★★★★
★★★★★
(7 Reviews)
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  • 5 stars
    7
  • 4 stars
    0
  • 3 stars
    0
  • 2 stars
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  • 1 star
    0
  • 1
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Sorry, we couldn't find any existing reviews that matched. Try using some different or simpler keywords.
★★★★★
★★★★★
FIXED POULAN LEAF BLOWER
Great service, and fast.
Guest - May 9, 2019
Verified Purchase
★★★★★
★★★★★
Worked great
Did exactly what it was suppose to do!!
Guest - May 8, 2020
Verified Purchase
★★★★★
★★★★★
Worked as expected.
My blower is working again.
Guest - June 25, 2020
Verified Purchase
★★★★★
★★★★★
Exact replacement
It took 19 days to receive .
Guest - September 25, 2020
Verified Purchase
★★★★★
★★★★★
Flywheel Purchase
This arrived on time in good condition and fit perfectly. Thank you!
Guest - May 25, 2021
Verified Purchase
★★★★★
★★★★★
Replacement
New part took care of the problem, thank you for your quick response.
Guest - February 24, 2023
Verified Purchase
★★★★★
★★★★★
Flywheel
It worked perfectly, and was cheaper than other places. Thank you!
Guest - October 16, 2025
Verified Purchase

Questions & Answers

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Would this part prevent the engine from starting
Abraham For model number 358894776 - February 25, 2023

Hello Abraham, Thank you for contacting us. If the spark arrestor on the front of the muffler is clogged or damaged, it can prevent the engine from starting. The other parts to check are the spark plug, the carburetor, a clogged fuel filter, the ignition module, the magnets on the flywheel, and a dirty air filter. Good luck with your repair.

eReplacementParts Team
February 25, 2023

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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.

A Bit Difficult 

1- 2 hours 

(11 rated repairs) ?
  • 1
  • 2
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Sorry, we couldn't find any existing installation instruction that matched.

Key on flywheel sheered, causing a no start situation

dave from kingsport, Tennessee

13 of 13 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver, Screw drivers, Wrench set
Parts Used:
545221701
1. Remove outer casing and housing.
2. Remove impeller
3. Remove engine assembly from last of casing
4. Remove flywheel and replace
5. Reassemble in reverse as to assembly
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Flywheel alignment key broke off

William from Ravenna, Kentucky

7 of 7 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers, Wrench set
Parts Used:
545221701
Removed the fan housing, then used a puller to remove the flywheel. lines up the key in the new flywheel with the keyway in the driver shaft and tapped it on with a mallet. It is a tapered fit. Then put the housing back on.
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Flywheel key broke

Levy from Belle Rose, Louisiana

3 of 3 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
15 - 30 mins
Tools:
Socket set, Wrench set
Parts Used:
545221701
1. Use hexagon wrench to remove screws.
2. Use rachet set remove fan bolt from shaft.
3. Remove top with starter rope.
4. Remove flywheel and replace with new one.
5. Assemble in reverse order.
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Kept dying & wouldnt idle smoothly.

robert from BEACHWOOD, New Jersey

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
Parts Used:
588867801, 545221701, 545154009
1. Disconnected spark plug.
2. Removed both side housings (impeller must be removed too).
3. Removed ignition module & flywheel.
4. Removed carbuerator & muffler.
5. Removed cylinder wall housing.
6. Removed PISTON RING and gently scraped RinG groove clean.
7. Installed NEW PISTON RING into groove. ... Read more />8. Oil piston & cylinder wall (2 cycle) then gently compress back into cylinder.
9. Install cylinder bolts (use thread locker BLUE) if not new bolts.
10. Install muffler & carbuerator.
11. Install NEW FLYWHEEL (my key groove was worn).
12. Put NEW IGNITION MODULE (my plug wire was shorted out) in place *with folded piece printer paper as approximate ignition gap*.
13. Verified flywheel turned full revolution without magnet sticking to module & that the paper was able to slide thru fully FREELY.
14. PERFORMED CLOSE INSPECTION of all bolts tight and secure, all seals & gaskets good & reinstalled.
15. Installed both sides of housing, be sure \"fingers\" on flywheel engage to recoil rope & spacer put back.
16. Reconnected Spark Plug wire to spark plug.
17. Verified FRESH 40:1 2 cycle mix, air filter clean and approximately 1-2 drops 2 cycle oil squeezed thoroughly within air filter sponge.
18. Turned on choke, pressed primer bulb 3-5 times until fuel mix present.
19. Without touching trigger pulled starter & started after 3 pulls.
20. Let idle about 30 seconds then squeezed trigger, choke automatically shifted to OFF position & continued to run smoothly.
21. Went outside began blowing leaves & ran perfect until out of fuel (did on purpose).
22. Refueled and no prime or choke started after 5 pulls!
(Was testing - Poulan has some problems unable to restart after warmed up).
-replaced flywheel, ignition module, piston ring-
--poulan pro pb200vs
--40:1 fuel/oil mix
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No start.......no attempt to start even with starting fluid. Compression was at minimums when I checked it.

Jerry from Collierville, Tennessee

2 of 2 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Pliers, Screw drivers, Socket set
Parts Used:
545221701, 545154001, 530012541
Unit will have to be completely disassembled so remember (i.e. take pictures) as you go. Remove carb. and fuel tank at the same time and leave hose hooked to carb. Got to the other side and remove plastic cover over exhaust muffler and remove muffler, gasket and metal deflector. Remove carrying handle (2 screws) and the top plastic cover. At this time you can remove spark plug if you desire...........or you can wait until later.
Bottom side of unit............remove 3 screws covering and protecting fan and set cover and screw aside. Hold fan and remove nut, lock washer and large flat washer. Set this aside also. Remove fan duct and nozzle (4 screws) and set it aside. Now all that is left is the lower housing (4 screws) Remove screws and housing and set aside.
Flywheel is exposed at this point and (in this order) you will find a space and washer (washer is next to flywheel. Remove them and set aside. Gently work flywheel back and forth.......a little lubricant between shaft and flywheel will help. Shaft is tapered so it will come off with a little effort.
Next I took the two allen head bolts holding the cylinder head on. Set them aside and remove head. I removed the piston and rod assembly due to over-heating and or lack of proper lubricant in fuel. To remove the assembly the \"black\" cover (2 screws) on rear if engine block will have to be removed.
To reassemble everything is reverse from disassembly. I used RED Loctite on the cylinder bolts and BLUE Loctite on the Fan Nut and shaft.
Main culprit I found was the piston ring was frozen to the piston and the cylinder was scored. Compression was dismal and what I suspected was proven once the unit was disassemble.
Make sure you have a good supply or Torx screwdrivers and bits (various sizes) along with a good Allen Wrench set
Don\'t forget to watch for the gasket behind carb. It will come lose and may wind up on the floor when you remove the carb. Same goes for the exhaust.
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Coil and flywheel were both damaged due to debris

Norman from Council bluffs, Iowa

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Nutdriver, Screw drivers, Socket set
Parts Used:
545221701
I followed manufacturers disassemble and reassembly instructions
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Flywheel key was damaged.

David from Lawrence, Michigan

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
1- 2 hours
Tools:
Nutdriver, Screw drivers
Parts Used:
545221701
Removed old flywheel and installed new one.
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Damaged coil and cracked housing

Randall from North Platte, Nebraska

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Nutdriver, Screw drivers, Socket set, Wrench set
Parts Used:
545221701, 530071627
Completely rebuilt motor.
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Leaf blower would not run

Michael from Choctaw, Oklahoma

1 person found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Pliers, Screw drivers, Socket set, Wrench (Adjustable), Wrench set
Parts Used:
545221701, 545081832, 530015953
1.). One of the screws holding the cylinder down sheared off at the head. The head was caught up in the flywheel and took out two blades and nicked several others. The gasket was torn as well.
2.). I had to completely disassemble the entire blower because the screw was in the back.
3.). With everything apart, I went ahead an d replaced all the gaskets from the kit.
4.). I sprayed WD-40 on the post going through the flywheel and let it set for a couple of hours. Using a bench vise and a rubber mallet, I was able to easily take the fly wheel off.
5.). I had to use some needle nose vise grips to grab hold of the remainder of the broken screw and eventually worked it loose.
6.). Reassembled all the hardware. I made sure, while taking it apart, to take detailed pictures with my phone. I used those pictures and the diagrams from replacements to make sure that I put everything back together properly. I had also placed the each part or associated screw in their own containers to help keep them organized.
7.). Leaf blower works great now. $20 in parts, a couple of hours of disassemble and reassemble and I am back in business.
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Flywheel

James from Gastonia, North Carolina

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Nutdriver, Screw drivers, Socket set
Parts Used:
545221701
Dissemble, replace parts, assemble,crankand run it. Done in 30 minutes complete.
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Model Cross Reference

This part works with the following models:
ERP Number: ERP16365732
Manufacturer Part Number: 545221701
Brand Model Number Description
Husqvarna 112 Trimmer - Handheld Trimmer
Husqvarna 18H Hedge Trimmer - Hedge Trimmer
Husqvarna 21LCN Trimmer - Line Trimmer
Husqvarna 24C Trimmer - Husqvarna String Trimmer Model 24C/TYPE 1 (24C/TYPE1) Parts
Poulan 25HHT Trimmer - Poulan String Trimmer Model 25HHT/TYPE 1 (25HHT/TYPE1) Parts
Weed Eater 25HO Trimmer - Gas Trimmer
Weed Eater 25HOSST Trimmer - Weed Eater High Output String Trimmer
Craftsman 358348320 Trimmer - Trimmer
Craftsman 358348321 Trimmer - Trimmer
Craftsman 358348340 Trimmer - Trimmer
Craftsman 358742420 Trimmer - Trimmer
Craftsman 358742430 Trimmer - Trimmer
Craftsman 358742440 Trimmer - Trimmer
Craftsman 358742450 Trimmer - Trimmer
Craftsman 358742460 Trimmer - Trimmer
Craftsman 358742470 Trimmer - Trimmer
Craftsman 358744380 Trimmer - Trimmer
Craftsman 358745190 Trimmer - Trimmer
Craftsman 358745191 Trimmer - Trimmer
Craftsman 358745500 Trimmer - Trimmer
Craftsman 358745501 Trimmer - Trimmer
Craftsman 358745510 Trimmer - Trimmer
Craftsman 358745511 Trimmer - Trimmer
Craftsman 358745520 Trimmer - Trimmer
Craftsman 358745521 Trimmer - Trimmer
Craftsman 358745530 Trimmer - Trimmer
Craftsman 358745531 Trimmer - Trimmer
Craftsman 358745540 Trimmer - Trimmer
Craftsman 358745541 Trimmer - Trimmer
Craftsman 358745550 Trimmer - Trimmer
Flywheel
$ 77.30
In Stock
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Stock Status
✖
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