This is an authentic OEM sourced replacement piston ring used on gas Trimmers and blowers. A worn or broken piston ring will allow combustion gases to escape the seal and enter the crankcase, causing low compression and a loss of power. If compression is reduced significantly, the engine will not run at all. This part is made out of metal and is sold individually. To complete this repair you will need a set of wrenches, pliers and a screwdriver.
Troubleshooting
This part works with the following brands:
Weed Eater
Craftsman
Poulan
Husqvarna
Jonsered
Snapper
This part works with the following products:
Trimmer
Leaf Blower / Vacuum
Hedge Trimmer
Edger
Pole Saw
Part# 545154001 replaces these:
530049903, 530055120, 545154001,
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Customer Part Reviews
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4.4
Average Rating (out of 5):
★★★★★
★★★★★
(8 Reviews)
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★★★★★
★★★★★
Right part
Haven't had a chance to install it yet. Shipping was delayed for quite a while but it was due to the usps having problems.
James - June 12, 2020
Verified Purchase
★★★★★
★★★★★
Works great !
Shipping fast, good quality of parts, easy to replace, I replaced this piston ring combine with cylinder then my poulan weed eater runs like new..
Tri - August 13, 2020
Verified Purchase
★★★★★
★★★★★
Spare Ring
Arrived as advertised.
Buddy - September 9, 2020
Verified Purchase
★★★★★
★★★★★
Great Part
The piston ring arrived on time and was well packaged for shipping. The part fit and made all the difference in my engine performance! I recommend ereplacements for all of your parts needs!
Sean - September 1, 2022
Verified Purchase
★★★★★
★★★★★
moderately difficult to perform ring replacement part fit perfect engine spins like a top
part fit perfect and engine runs great
Guest - October 5, 2022
Verified Purchase
★★★★★
★★★★★
fit well exact replacement
New part, fit well, unfortunately I still have no compression. I've replaced the headgasket and the bottom end o ring, the carb and the coil. Guess I will buy a new one..
Guest - October 15, 2019
Verified Purchase
★★★★★
★★★★★
Quality part and price but way too long to deliver
The part arrived way too late. I was able to get another from a different vendor and my trimmer was running by the time yours arrived . Your price, ring quality angry packaging were excellent. Thank you.
Gerard - June 21, 2023
Verified Purchase
★★★★★
★★★★★
They broke.
I was trying to install them and they broke. I know this expected of pistol rings but I kind of sucks that I payed about $18 for both and they broke on installment. I was trying to close the block back together and thats when they broke.
Walton - February 1, 2022
Verified Purchase
Questions & Answers
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Removed the engine from the blower housing. Unbolted cylinder/head from the crankcase. Installed the new piston ring. Reassembled the blower. The only problem was getting the new piston ring compressed enough that the piston could slide back into the cylinder. I used a worm type automotive hose clamp as a piston ring compressor.
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No start.......no attempt to start even with starting fluid. Compression was at minimums when I checked it.
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.
... Read more 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.
1. Took the assembly apart
2. Tested compression
3. With the poor compression, went to look at piston closer and broke piston ring in the process which must have been weak to begin with.
4. Ordered new piston rings and gasket kit to replace all the gaskets since engine assembly was taken apart.
5. Put together r
... Read moreemaining assembly
6. Applied high temperature adhesive and let cure over a few days
7. Tried starting the blower and it ran great!
I disassembled the outer plastic housing to gain access to the motor. Once I had access to the motor I performed the disassembly in the following order:
Removed the carburetor and spacer, held in with two screws. Removed and replaced paper gaskets.
Removed the exhaust and heat shield, held in with two screws. Rep
... Read morelaced exhaust gasket
Removed the cylinder, held in with two machined screws. Replaced rubber base gasket
Removed piston assembly and ring.
Cleaned and checked the piston and cylinder bore for gouges. Removed and replaced cylinder ring.
The blower had low compression, so I replaced the ring, and gaskets. I followed instructions from a small repair manual that I purchased some time ago.
Disassembled trimmer engine. Installed new cylinder and ring. Compression restored. Carb rebuild kit also installed. Trimmer now runs good with good power. I enjoy repairing equipment.
I ordered a piston stop special tool. Screws into the spark plug hole to stop the engine from rotating when removing the centrifugal clutch to
... Read more disassemble the unit. Ordered a clutch removal special tool.
I was very impressed with the quality of the entire power equipment business. High quality products. Good replacement parts online service. Very good online illustrations. Good prices and shipping time. Excellent support including YouTube videos.
I
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Model Cross Reference
This part works with the following models:
ERP Number: ERP16365561
Manufacturer Part Number: 545154001
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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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.
