Easy
15-30 minutes
This item is available as an individual replacement part. The metal muffler connects to the exhaust tube and helps to reduce the noise from the exhaust. Over time this part may rust and will need to be replaced and may require a socket set and a wrench during replacement. This part is an OEM sourced directly from the manufacturer for use in Ryobi lawn tractors, Husqvarna ride mowers, Poulan lawn tractors, and Jonsered tractors.
Muffler 532188655
OEM part for: Husqvarna, Ryobi
Part Number: 532188655
$46.07
In Stock
Ships within 1 business day 
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Compatibility
This Muffler will fit the following 638 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
This item works with the following types of products:
- Lawn Tractor Parts
- Lawn Mower Parts
This part replaces obsolete part #: 5805323-01, 580532301, 188655
Customer Part Reviews ?
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Exactly the part I needed at a fair price and delivered on time.
Guest -
August 31, 2021
Verified Purchase
100 0/0
Perfect and easy install as expected !
Dale -
April 27, 2020
Verified Purchase
Muffler
The muffler was the right one and went on very easy. The mower works great.
Guest -
September 7, 2019
Verified Purchase
Fit perfectly, mower is quiet(er) again!
The muffler arrived on-time and in good shape. Took me a few minutes to install, as the attachment points were not threaded, but the self-tapping screws that held its predecessor readily self-tapped again, and I was in business. Great to be able use this mower again.
Bruce -
September 3, 2019
Verified Purchase
Great service...quick and easy..
Part was just what I needed..so easy to install my 10 yr old grandson did it for me...
Thanks
Guest -
March 27, 2020
Verified Purchase
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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.
Cracked muffer
Eugene - August 28, 2016
👍 4 of 6 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Medium
Time
1-2 hours
Tools Used
Pliers, Socket set, Wrench Set, Allen wrench
Parts Used
1. Removed engine cover/hood
2. Removed muffler underbody shield
3. Removed/loosen hood bracket assembly
4. Loosen exhaust pipe from the engine
5. Had to use attachment bolts to make new threads in the muffler bracket
6. Installed muffler
7. Reversed process
8. You do need to have some mechanical skills for this process
2. Removed muffler underbody shield
3. Removed/loosen hood bracket assembly
4. Loosen exhaust pipe from the engine
5. Had to use attachment bolts to make new threads in the muffler bracket
6. Installed muffler
7. Reversed process
8. You do need to have some mechanical skills for this process
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Muffler cracked
George - July 1, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Power Drill, Socket set
Parts Used
1. Disconnected the headlights cord.
2. Removed the engine cover.
3. Remove the bumper.
4. Remove the muffler screws.
5. Replace the old muffler w/the new one.
6. Reassemble steps 4,3,2,&1.
2. Removed the engine cover.
3. Remove the bumper.
4. Remove the muffler screws.
5. Replace the old muffler w/the new one.
6. Reassemble steps 4,3,2,&1.
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Muffler & pipe were rusted out
scott - May 31, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Power Drill, Socket set
Remove the bolts holding the muffler
Removed the screw holding the exhaust tube
Remove the exhaust tube
Installed the new exhaust tube with the new gasket
Installed the new muffler
Removed the screw holding the exhaust tube
Remove the exhaust tube
Installed the new exhaust tube with the new gasket
Installed the new muffler
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Lawn mower blades could not be disengaged.
mlchael - August 18, 2016
👍 1 of 1 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Socket set, Wrench Set
1. Removed mower deck.
2. Removed pulley that attaches to the idler return spring.
3. Removed old worn idler arm.
4. Installed new idler arm, pulley and deck.
2. Removed pulley that attaches to the idler return spring.
3. Removed old worn idler arm.
4. Installed new idler arm, pulley and deck.
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Riding mower muffler rusted out
Robert - June 21, 2016
👍 2 of 3 people found this instruction helpful
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Adjustable Wrench
Parts Used
Removed the old muffler and installed the new muffler. Two bolts to hold in place
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The steering wheel broke off and the muffler had a large crack in it
Alfonso - June 20, 2023
Tool Type
Lawn Mower
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set
Parts Used
Removed the old steering wheel and installed the new one
Removed the muffler and installed the new one.
Removed the muffler and installed the new one.
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Had to start the two bolts off the mower beforehand because threads were very tight
James - September 25, 2021
Tool Type
Lawn Tractor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set
Parts Used
Start bolts while off the mower with WD-40 because the threads are so tight. Once that was done, the muffler went on very easily.
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Muffler cracked
Ted - July 6, 2021
Tool Type
Lawn Tractor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set
1. Open hood
2. Unplug wire harness for headlights
3. Lift hood up and away to remove.
4. Unscrew 2 bolts holding muffler guard
5. Unscrew 2 bolt holding muffler.
6. Muffler will drop out bottom of frame.
7. Replace muffler. New holes are not tapped, easier to screw original self tapping bolts in first to tap holes.
8. Replace muffler guard
9. Replace hood
2. Unplug wire harness for headlights
3. Lift hood up and away to remove.
4. Unscrew 2 bolts holding muffler guard
5. Unscrew 2 bolt holding muffler.
6. Muffler will drop out bottom of frame.
7. Replace muffler. New holes are not tapped, easier to screw original self tapping bolts in first to tap holes.
8. Replace muffler guard
9. Replace hood
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Muffler broke.
Peter - May 15, 2021
Tool Type
Lawn Tractor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set
Removed 2 Bolts holding the old muffler.
Replaced with new muffler
Replaced with new muffler
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Muffler rusted out
Bob - September 17, 2020
Tool Type
Lawn Tractor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set, ..
1. Removed 2 bolts holding exhaust pipe to engine
2. Removed 2 bolts holding muffler to the frame
3. Scrapped old exhaust gasket from engine block
4. Installed new gasket exhaust pipe and muffler.
5. Installed 2 mounting bolts holding muffler to frame.
2. Removed 2 bolts holding muffler to the frame
3. Scrapped old exhaust gasket from engine block
4. Installed new gasket exhaust pipe and muffler.
5. Installed 2 mounting bolts holding muffler to frame.
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Our 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.
