Medium
1-2 hours
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.
Piston Ring 545154001
OEM part for: Poulan, Weed Eater
Part Number: 545154001
$4.99
In Stock
Ships within 1 business day 
Jump To:
Product Description ?
- Classification: Part
- Weight: 0.01 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This Piston Ring will fit the following 482 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 20 of 482 matching models.
482 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Craftsman
- Husqvarna
- Poulan
- Weed Eater
This item works with the following types of products:
- Blower
- Edger
- Hedge Trimmer
- Pruner
- Trimmer
This part replaces obsolete part #: 5300551-20, 530055120, 530049903
Customer Part Reviews ?
Average Rating (out of 5):
Click to filter by ratings:
5 stars
5
4 stars
1
3 stars
2
2 stars
0
1 stars
0
< PREV
- 1
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
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
Spare Ring
Arrived as advertised.
Buddy -
September 9, 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
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
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 ?
Our customer Service team is at the ready daily to answer your part and product questions.
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.
Does this fit my product?Questions & Answers for Piston Ring
No questions have been asked yet
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.
Very low compression. The piston ring broke into 2 pieces.
Allan - August 28, 2017
👍 4 of 5 people found this instruction helpful
Tool Type
Blower
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Ring Compressor, Allen Wrench
Parts Used
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.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Blower wasn't getting compression
Kevin - October 9, 2017
👍 2 of 2 people found this instruction helpful
Tool Type
Blower
Difficulty
Hard
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Socket set
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 remaining assembly
6. Applied high temperature adhesive and let cure over a few days
7. Tried starting the blower and it ran great!
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 remaining assembly
6. Applied high temperature adhesive and let cure over a few days
7. Tried starting the blower and it ran great!
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Would not start, no compression
Leo - January 1, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Blower
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Socket set, Allen wrenches, ring compressor
Parts Used
1 Removed engine
2 Removed cylinder head
3 Removed old piston ring
4 Installed new piston ring
5 Reassembled and reinstalled engine
2 Removed cylinder head
3 Removed old piston ring
4 Installed new piston ring
5 Reassembled and reinstalled engine
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Piston ring stuck. No compression.
Herman - December 8, 2022
Tool Type
Blower
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Socket set
Parts Used
Disassembled blower motor, installed new piston and ring.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
no compression
Ron - September 18, 2022
Tool Type
Blower
Difficulty
Expert
Time
30-60 minutes
Tools Used
Screwdriver, torx drivers
Parts Used
replaced piston ring
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Low cylinder compression, carburetor fowling
Sean - August 31, 2022
Tool Type
Hedge Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Allen wrench and T-handle
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. Replaced 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.
Reassembled in reverse 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. Replaced 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.
Reassembled in reverse order.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
No compression
John - January 26, 2022
Tool Type
Blower
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, allen wrench
Parts Used
disassembled blower
removed old piston ring
cleaned piston ring groove
installed new piston ring
reassembled blower
removed old piston ring
cleaned piston ring groove
installed new piston ring
reassembled blower
Did you find this story helpful?
Thanks for voting and helping fellow customers!
low compression
Gary - November 17, 2021
Tool Type
Blower
Difficulty
Easy
Time
30-60 minutes
Tools Used
, dont remember tourqe drive size.
Parts Used
Stuck ring in craftsman 358-797342 vac/blower with low compression. Ordered and replaced ring, and brought compression up to 90psi. Starts on one to two pulls now. With a new carb, runs like new. All I did was replace the single ring. Did not hone out the cylinder and did not replace piston.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Old, Used, and bolts loosened over time.
Ronald - September 4, 2021
Tool Type
Blower
Difficulty
Medium
Time
1-2 hours
Tools Used
, Torq tips
time to complete, well I wasn't in a hurry but took a few hours.
Steps:
clean parts swap the new o-rings/gaskets and the new piston ring,, lock tight bolts and hope they hold over time.
Note: piston ring breaks during disassemply so just pick it out and take a broken piece to use to scrap and clean the ring groove.
Steps:
clean parts swap the new o-rings/gaskets and the new piston ring,, lock tight bolts and hope they hold over time.
Note: piston ring breaks during disassemply so just pick it out and take a broken piece to use to scrap and clean the ring groove.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
After 4 years of service, trimmer would not run, low compression
Randall - June 10, 2021
Tool Type
Trimmer
Difficulty
Expert
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver, Piston stop that screws into sp plug hole. Clutch removal to
Parts Used
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 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
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 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
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Load More Install Stories
OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Learn MoreOur product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
