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Repair Parts Home  Lawn Equipment Parts  Poulan Parts  545154009 Piston Ring

Piston Ring

Part Number: 545154009
PoulanWeed Eater
Availability: 25+ in stock
Price: $3.81
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*This part replaces obsolete part #: 530012472 and 530053565.

Product Information
Manufacturer: Poulan, Weed Eater
Product Number: 545154009
Classification: Part
Weight: 0.01 lbs.
Shipping: Ships Worldwide
Specifications
  • OD 1-3/8"
  • ID 1-2/8"
Description:
This is a Genuine OEM replacement Piston Ring used on certain Gas Trimmers and Blowers. This part is made out of metal and is sold individually. 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.
Frequently Purchased With
Compatibility

This part is compatible with the following machines:

Expand the 56 compatible machines
Products Compatibility

This item works with the following types of products:

  • • Blower
  • • Edger
  • • Hedge Trimmer
  • • Trimmer
Questions & Answers

No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
10 of 11 people found this instruction helpful
Tool Type:
Blower
Parts Used:
Piston Ring - 545154009
Repair Difficulty:
Medium
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Socket set, Adjustable Wrench, torx
Stuck ring on piston
Disassemble blower, engine, and remove stuck ring. Reinstall new ring,reassemble all in reverse order.
The most difficult job was removing the stuck ring.
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8 of 8 people found this instruction helpful
Tool Type:
Blower
Parts Used:
Piston Ring - 545154009
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Socket set, Nutdriver
Cylinder head bolts came out
Remove air filter.
Remove plastic engine cover and disconnect spark plug wire.
Remove carburetor.
You can leave the fuel hoses connected, just swing carb to the side.
Remove exhaust header by removing two torx screws.
Remove two cylinder Allen head bolts. In my case one had backed all the way out.
Lift cylinder head straight up. At that time you can see the piston.
Replace the head gasket (small o-ring type).
Remove old piston ring and clean ring groove with rag and something like brake cleaner.
Carefully expand the new piston ring and begin fitting it into the groove. For my Poulan leaf blower there's a small pin in the ring groove. The split will need to fit onto one of these pins. You'll also note that the end of the piston ring is slightly rounded on the bottom. That rounded portion fits over the pin. To verify its on correctly, compress the ring and ensure it will compress to the size of the piston.
After the ring is correctly installed on the piston and head o-ring is in place, place some oil on the ring and bottom of the cylinder. This will aid in inserting the piston back into the cylinder head.
Hold the piston up as high as possible with two fingers, and begin pushing the cylinder down onto the piston. Using a slight side to side motion the cylinder should slide down over the piston. Don't force it. If it doesn't slide on with some moderate pressure stop and check to ensure you have the ring on properly.
Another option si to remove the piston and piston rod. This is easily done by remove a plastic cover with two torx screws on the outside of the engine. With that remove the piston rod will slide off of the engine shaft. This will allow you to flip the cylinder upside down and insert the piston. In this position, it's easier to compress the ring with your fingers or a plastic screw driver (don't scratch anything).
When it's on, put everything back together in reverse order of above.
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3 of 3 people found this instruction helpful
Tool Type:
Trimmer
Parts Used:
Piston Ring - 545154009
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Wrench Set, Hex (Allen wrench) & Star head screwdriver, Scotch-Brite pad
Chainsaw was difficult to start especially when hot.
eReplacement has the inventory of replacement parts at a very reasonable price with fast delivery. I needed a piston ring for a Craftsman chainsaw no longer supported by Sears. eReplacement had the part (<$4). Within a week my chainsaw was back in action.

After a few years my chainsaw was difficult to start especially when hot. Disassembly was relatively easy using tools made for hex and star shaped screws. After removing the cylinder head (access the 2 hex screws through the holes with an Allen wrench) and slipping the connecting rod off the crank, I found the ring compressed by heavy carbon deposits. Heavy carbon deposits on the piston and head walls were removed using a Scotch-Brite pad. Soaking the piston/ring in Marvel Mystery oil released the ring from the piston groove. After installing the new ring (making certain the ring split was positioned to the intake side) and reassembly, the old chainsaw runs like new.
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1 of 1 people found this instruction helpful
Tool Type:
Blower
Parts Used:
Piston Ring - 545154009
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Socket set, Plug wrench
No compression.
Removed the head and replaced the ring. Then, reassembled.
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1 of 1 people found this instruction helpful
Tool Type:
Blower
Parts Used:
Piston Ring - 545154009
Gasket Kit - 545081832
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Nutdriver, Alen wrench
It would not start. The piston wring was burned and compressed inside the groove
I purchased the blower at an auction. Did not know why it wouldn’t start so I took it apart and saw that the piston wring was burned and compressed inside the piston groove. That’s why it had no compression. So I replaced the ring and gaskets, put it back together and it ran great.
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Tool Type:
Blower
Parts Used:
Piston Ring - 545154009
Repair Difficulty:
Expert
Time Spent Repairing:
More than 2 hours
Tools Used:
Screwdriver, Pliers, Power Drill, Socket set, Wrench Set, Nutdriver
No compression, won't run
Install piston ring, now have compression
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Tool Type:
Trimmer
Parts Used:
Piston Ring - 545154009
Repair Difficulty:
Medium
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Socket set, Wrench Set
piston scored
rebuilt engine
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Tool Type:
Blower
Parts Used:
Piston Ring - 545154009
Repair Difficulty:
Medium
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Socket set, Wrench Set, Nutdriver
Low compression-old ring was seized into piston groove
Disassembled blower and engine, honed cylinder and tested/inspected/measured multiple engine parts. Ordered new ring and reassembled engine to torque specifications.
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Tool Type:
Blower
Parts Used:
Piston Ring - 545154009
Repair Difficulty:
Medium
Time Spent Repairing:
15-30 minutes
Tools Used:
Socket set, Nutdriver
No compression
Good
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Tool Type:
Trimmer
Parts Used:
Shroud Isolator - 530036793
Piston Ring - 545154009
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Power Drill
Would not run
Changed plug replaced fuel lines,clean gasoline and just over cleanup
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Reviews
5
Average Rating (out of 5):
5 Reviews
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  • difficult repair
    The ring was for a different model blower. It had the same inner and outer diameter, but the thickness, or height, had to be reduced 0.28. I did not have a surface grinder, so I hand sanded the ring height to the proper measurement. It took about 2 hours. Then I increased the end gap to fit into the ring groove, missing the pin. (This model blower DOES NOT SELL pistons and rings for it!) Just an expensive engine block assembly.
    William - December 22, 2021 Verified Purchase
    repair for Poulan leaf blower
    The parts i purchases worked very well and got my leaf blower going again.
    Guest - June 3, 2021 Verified Purchase
    Good help on phone service and delivery was as quoted .
    Part was great, worked temporarily, but gas connection broke off during final installation and had to reorder. Waiting for delivery of replacement .
    Guest - December 12, 2019 Verified Purchase
    Ring replacement
    Worked perfect
    Richard - December 4, 2019 Verified Purchase
    working great
    the blower works great but the MAIL WAS SLOW
    Guest - June 13, 2019 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Manufacturer: Poulan, Weed Eater
    Product Number: 545154009
    Classification: Part
    Weight: 0.01 lbs.
    Shipping: Ships Worldwide

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