Easy
Less than 15 minutes
This replacement muffler assembly specially is specially produced by original equipment manufacturer for use with Homelite and Ryobi string trimmers. The purpose of a muffler is to soften the noise coming from the engine and provides an additional layer of filtration of exhaust. This metal muffler is designed to meet EPA exhaust regulations. This durable metal assemby is sold individually, please note the composite material gasket is inlcuded in this assembly.
Muffler Assembly UP04634
OEM part for: Ryobi, Homelite
Part Number: UP04634
$18.24
In Stock
Order within the next 3 hours and your part ships today! 
Compatibility
This part will fit the following 134 machines
Ryobi
RY70101 Curved Shaft Trimmer View Diagrams & Manuals
RY70101A Curved Shaft Trimmer View Diagrams & Manuals
RY70103 Curved Shaft Trimmer View Diagrams & Manuals
RY70103A Curved Shaft Trimmer View Diagrams & Manuals
RY70105 Straight Shaft Trimmer View Diagrams & Manuals
RY70105A Straight Shaft Trimmer View Diagrams & Manuals
RY70107 Straight Shaft Trimmer View Diagrams & Manuals
RY70107A Straight Shaft Trimmer View Diagrams & Manuals
RY70111 Curved Shaft Trimmer View Diagrams & Manuals
RY70113 Curved Split Shaft Trimmer View Diagrams & Manuals
Homelite
B25C (UT-20768) Trimmer View Diagrams & Manuals
B25C (UT-20770) Trimmer View Diagrams & Manuals
B25S (UT-15182) Trimmer View Diagrams & Manuals
BC1725SBR (UT-15203) Trimmer View Diagrams & Manuals
BC2500AZ (UT-15205) Trimmer View Diagrams & Manuals
BC2500AZ (UT-15201) Trimmer View Diagrams & Manuals
BC2500AZ (UT-15202) Trimmer View Diagrams & Manuals
UT15204 (BC2500MR) Trimmer View Diagrams & Manuals
UT15159R (BC2500MR) Trimmer View Diagrams & Manuals
UT15200 (BC2500R) Trimmer View Diagrams & Manuals
BC800 (UT-15183) Trimmer View Diagrams & Manuals
BC800 (UT-15184) Trimmer View Diagrams & Manuals
BC900 (UT-15166) Trimmer View Diagrams & Manuals
BC900 (UT-15172) Trimmer View Diagrams & Manuals
C300 (UT-20755) Trimmer View Diagrams & Manuals
C300 (UT-20775) Trimmer View Diagrams & Manuals
UT-70026 Trimmer View Diagrams & Manuals
D725CD (UT-20739) Trimmer View Diagrams & Manuals
D725CD (UT-20761) Trimmer View Diagrams & Manuals
UT20695 (D725CDE) Trimmer View Diagrams & Manuals
UT20713 (D725CDE) Trimmer View Diagrams & Manuals
D725CDE (UT-20773) Trimmer View Diagrams & Manuals
UT20711 (D825CA) Trimmer View Diagrams & Manuals
D825CA (UT-20736) Trimmer View Diagrams & Manuals
UT20705 (D825CDP) Trimmer View Diagrams & Manuals
UT15152 (D825SB) Trimmer View Diagrams & Manuals
UT15160 (D825SB) Trimmer View Diagrams & Manuals
UT15165 (D825SB) Trimmer View Diagrams & Manuals
UT15170 (D825SB) Trimmer View Diagrams & Manuals
UT20700 (D825SD) Trimmer View Diagrams & Manuals
UT20701 (D825SD) Trimmer View Diagrams & Manuals
UT20709 (D825SD) Trimmer View Diagrams & Manuals
D825SD (UT-20729) Trimmer View Diagrams & Manuals
D825SD (UT-20774) Trimmer View Diagrams & Manuals
D825SD (UT-20784) Trimmer View Diagrams & Manuals
UT-20703 Trimmer View Diagrams & Manuals
UT-20704 Trimmer View Diagrams & Manuals
UT-20730 Trimmer View Diagrams & Manuals
UT-20737 Trimmer View Diagrams & Manuals
UT-20738 Trimmer View Diagrams & Manuals
UT-20749 Trimmer View Diagrams & Manuals
UT-20758 Trimmer View Diagrams & Manuals
UT-20769 Trimmer View Diagrams & Manuals
UT-20769-A Trimmer View Diagrams & Manuals
UT-20785 Trimmer View Diagrams & Manuals
UT-20806 Trimmer View Diagrams & Manuals
UT-20832 Trimmer View Diagrams & Manuals
UT-20837 Trimmer View Diagrams & Manuals
UT-20699 Trimmer View Diagrams & Manuals
UT-20693 Trimmer View Diagrams & Manuals
UT-20780 Easy Trim String Trimmer View Diagrams & Manuals
UT-20712 Expand-It 3 in 1 String Trimmer View Diagrams & Manuals
UT-20710 Expand-it Plus String Trimmer View Diagrams & Manuals
UT-20779 Trim'n Edge String Trimmer View Diagrams & Manuals
UT-20772 Trim 'N Edge View Diagrams & Manuals
UT-20760 (S/N MB0849999) String Trimmer View Diagrams & Manuals
UT-20760-A String Trimmer View Diagrams & Manuals
UT20771 Power Trim View Diagrams & Manuals
Z625CDV (UT-20631) String Trimmer View Diagrams & Manuals
UT-15136 String Trimmer View Diagrams & Manuals
s825cdv (UT-20632) String Trimmer View Diagrams & Manuals
s825cdv (UT-20632-A) String Trimmer View Diagrams & Manuals
UT20694 (Trim N' Edge) Zip Start Trimmer View Diagrams & Manuals
UT20697 (Trim N' Edge) Zip Start Trimmer View Diagrams & Manuals
UT20698 (Trim N' Edge) Zip Start Trimmer View Diagrams & Manuals
UT20702 (Trim N' Edge) Zip Start Trimmer View Diagrams & Manuals
UT20707 (Trim N' Edge) Zip Start Trimmer View Diagrams & Manuals
UT20728 (Trim N' Edge) Zip Start Trimmer View Diagrams & Manuals
UT15151 (Versa Tool) Zip Start Trimmer View Diagrams & Manuals
UT15154 (Versa Tool) Zip Start Trimmer View Diagrams & Manuals
UT15157 (Versa Tool) Zip Start Trimmer View Diagrams & Manuals
UT20722 (Versa Tool) Zip Start Trimmer View Diagrams & Manuals
UT20723 (Versa Tool) Zip Start Trimmer View Diagrams & Manuals
UT20726R (ST2517CR) Zip Start Trimmer View Diagrams & Manuals
UT20823 (ST2517CR) Zip Start Trimmer View Diagrams & Manuals
UT20734R (ST2537S) Zip Start Trimmer View Diagrams & Manuals
UT20827 (ST2537S) Zip Start Trimmer View Diagrams & Manuals
UT20763 (D825SD) Zip Start Trimmer View Diagrams & Manuals
UT20817 (ST2517CR) Zip Start Trimmer View Diagrams & Manuals
UT20818 (ST2537S) Zip Start Trimmer View Diagrams & Manuals
UT15180 (K400) Zip Start Trimmer View Diagrams & Manuals
UT15181 (K400) Zip Start Trimmer View Diagrams & Manuals
UT15169 (Versa Tool) Zip Start Trimmer View Diagrams & Manuals
UT20811 (Versa Tool) Zip Start Trimmer View Diagrams & Manuals
UT20811A (Versa Tool) Zip Start Trimmer View Diagrams & Manuals
UT20811B (Versa Tool) Zip Start Trimmer View Diagrams & Manuals
UT20811D (Versa Tool) Zip Start Trimmer View Diagrams & Manuals
UT20635R (ST725CDR) String Trimmer View Diagrams & Manuals
UT20764 (K100) Gas Trimmer View Diagrams & Manuals
UT20751 (K300) Gas Trimmer View Diagrams & Manuals
UT20783 (K300) Gas Trimmer View Diagrams & Manuals
UT20812 (ST2527) Gas Trimmer View Diagrams & Manuals
UT20813 (ST2537S) Gas Trimmer View Diagrams & Manuals
UT20747 (Trim N' Edge) Trimmer View Diagrams & Manuals
UT20748 (Power Trim) Trimmer View Diagrams & Manuals
UT20750 (K200) Trimmer View Diagrams & Manuals
UT20772A (Trim N' Edge) Trimmer View Diagrams & Manuals
UT20781 (K200) Trimmer View Diagrams & Manuals
UT20819 (ST2517CRG) Trimmer View Diagrams & Manuals
UT20820 (ST2517CRG) Trimmer View Diagrams & Manuals
UT20804 (Trimlite) Eco Power Trimmer View Diagrams & Manuals
UT20805 (Trim N' Edge) Eco Power Trimmer View Diagrams & Manuals
UT20816 (Versa Tool) Eco Power Trimmer View Diagrams & Manuals
UT20833 (Trim N' Edge) Eco Power Trimmer View Diagrams & Manuals
UT20838 (Versa Tool) Eco Power Trimmer View Diagrams & Manuals
UT15164 (Versa Tool) Trimmer View Diagrams & Manuals
UT70121 Curved Shaft Trimmer View Diagrams & Manuals
UT70123 Curved Shaft Trimmer View Diagrams & Manuals
UT70123A Curved Shaft Trimmer View Diagrams & Manuals
UT70127 Straight Shaft Trimmer View Diagrams & Manuals
UT70127A Straight Shaft Trimmer View Diagrams & Manuals
UT70129 Straight Shaft Trimmer View Diagrams & Manuals
UT70129A Straight Shaft Trimmer View Diagrams & Manuals
UT70131 Straight Shaft Trimmer View Diagrams & Manuals
UT70131A Straight Shaft Trimmer View Diagrams & Manuals
UT20677B (TrimLite) String Trimmer View Diagrams & Manuals
UT20720 (TrimLite) String Trimmer View Diagrams & Manuals
UT20721 (TrimLite) String Trimmer View Diagrams & Manuals
Z825SD (UT20619-A) Trimmer View Diagrams & Manuals
UT-20623 String Trimmer View Diagrams & Manuals
UT-20616 String Trimmer View Diagrams & Manuals
UT-20616-A String Trimmer View Diagrams & Manuals
UT-15177 ST525 String Trimmer View Diagrams & Manuals
UT-15178 ST725 String Trimmer View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Trimmer Parts
- Grass Trimmer Parts
- Hedge Trimmer Parts
This part replaces obsolete part #: UP06340, PA01073, PA01614, A064961
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Great Turn-around time
The parts was what was needed, our trimmer is working perfectly now. The turnaround time from placing the order to receiving the order was fast.
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July 5, 2022
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Questions & Answers ?
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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.
Hard to start and keep running, loud
Terry - June 20, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, 3/4 spark plug socket, #25 torx bit
1. Replaced spark plug using a 3/4 spark plug socket.
2. Removed cover using a #25 torx bit and replaced muffler assembly.
3. Replaced spool assembly.
2. Removed cover using a #25 torx bit and replaced muffler assembly.
3. Replaced spool assembly.
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Muffler loosened, destroyed gasket
Regina - June 5, 2022
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Nutdriver
Parts Used
Removed old muffler, replaced gasket with new one from Replacement Parts as part of gasket/complete muffler kit, installed new muffler. Perfect fit.
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Needed a new muffler
Roger - June 15, 2017
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Parts Used
Removed the screws from the old muffler and removed it
Installed the new muffler with the same screws
Installed the new muffler with the same screws
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Muffler worn out.
John - June 1, 2017
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Star driver (type of screwdriver)
1. Loosen two screws.
2. Remove the muffler.
3. Replace with the new muffler.
4. Tighten two screws.
2. Remove the muffler.
3. Replace with the new muffler.
4. Tighten two screws.
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Needed new muffler
Alison - September 30, 2016
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
Simply remove the screws from the old muffler and remove it. Then just screw the new muffler on.
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Nothing
Nicholas - December 26, 2018
👍 0 of 1 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set, None
Parts Used
Removed the old muffler assembly and replaced it with the correct parts.
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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.
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.
