The purpose of a piston ring is to create an airtight seal inside the cylinder. This piston ring is an authentic manufacturer-approved replacement part that is specially designed for use with Husqvarna and Jonsered chainsaws. A worn or broken piston ring will allow combustion gases to escape the seal and enter the crankcase, this would cause low compression and a loss of power. Replacing the piston ring should resolve this issue. This part is made of high-quality material and is sold individually.
Troubleshooting
This part works with the following brands:
Husqvarna
Jonsered
RedMax
This part works with the following products:
Chainsaw
Part# 544405901 replaces these:
5444059-01, 544405901, 544407001,
Questions & Answers
?
Our customer Service team is at the ready daily to answer your part and product questions.
Be the first to ask our experts a question about this part!
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.
I misdiagnosed this from the beginning. I thought carburater problem but even a new carb didn\'t help. I thought air leak on manifold boot but changing that didn\'t help. Then I sprayed starting fluid on the crank seals when running and revs went very high. I ordered seals before I found the drive side bearing loose.The crank assembly com
... Read morees with bearings and seals.
You have to disassemble the complete saw to replace this unit. I made my own flywheel puller using the threaded holes of the recoil fingers.10-32 threads. Stuff the rope in the spark plug hole to lock the piston to remove the clutch.You also need to switch the piston from the old crank assembly to the new one.The crank assembly does not come with a wrist pin bearing. Might as well replace the piston ring as you are this far. Inspect the piston and bore as you can buy this as an assembly also. If you can do all this you don\'t need my instructions. Honestly, you may as well buy a new saw at this point. My saw is running like new now but I did buy a new saw.
Read less
Did you find this story helpful?
Thank you for voting!
< Prev
1
Next >
Model Cross Reference
This part works with the following models:
ERP Number: ERP9030208
Manufacturer Part Number: 544405901
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.
✖
Mail-In Recycling Rebate
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.
_WW_6.gif "Part Location Diagram of 544405901 Husqvarna Piston Ring")
_WW_6.gif "Part Location Diagram of 544405901 Husqvarna Piston Ring")
