Easy
15-30 minutes
This is a genuine part from original manufacturer. This sprocket drum and bearing is used in some Homelite chainsaws. A sprocket engages the chain while the bearing allows for reduced friction and stable motion. This is a relatively high wear part and usually needs replacement with regular use. Sold individually.
Sprocket Drum & Bearing 309410003
OEM part for: Homelite
Part Number: 309410003
$9.60
In Stock
Ships within 1 business day 
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Compatibility
This part will fit the following 9 machines
Homelite
UT10548 14 In. 35cc Chainsaw View Diagrams & Manuals
UT10568 16 In. 38cc Chainsaw View Diagrams & Manuals
UT10588 18 In. 42cc Chainsaw View Diagrams & Manuals
UT10549 14 In. 35cc Chainsaw View Diagrams & Manuals
UT10569 16 In. 38cc Chainsaw View Diagrams & Manuals
UT10589 18 In. 42cc Chainsaw View Diagrams & Manuals
UT10640 14 Inch 42cc Chain Saw View Diagrams & Manuals
UT10660 16 Inch 42cc Chain Saw View Diagrams & Manuals
UT10680 18 Inch 42cc Chain Saw View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Chain Saw Parts
- Saw Parts
Customer Part Reviews ?
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Homelite
The part came on time. Thank You.
Guest -
December 18, 2020
Verified Purchase
The right part
It was easy to find on the web site and it was the right part.
James -
August 14, 2019
Verified Purchase
did not work
The part I received did not work because it was the wrong size, so I have returned it. There is not a model # on this saw so that was the problem, I have measured the inside of the sprocket that needs to be replaced. The inside diameter is 3.1 inches the sprocket you sent me was 2.75 inches. If this is avalible please send it. thanks Ron
Guest -
June 24, 2019
Verified Purchase
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Questions & Answers ?
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Does this fit my product?Questions & Answers for Sprocket Drum & Bearing
Will this fit this model Homelite
Newlin
for model number 10901b
asked on 2023-03-24
Hello Newlin, We are glad you asked! The correct Sprocket Drum & Bearing Assembly is part 000998263 for model UT10901B. We are pleased to have been able to help.
eReplacementParts Team March 24, 2023
2 1/2 by 5/8 with 5/16shaft
Newlin
for model number 10901b
asked on 2023-03-23
Hi Newlin,
Thank you for your question. The part number listed under your model number for the sprocket drum and bearing assembly is 000998263. If you would like to place an order for it, please call our customer service line and anyone will be happy to assist you. We look forward to hearing from you!
eReplacementParts Team March 23, 2023
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.
Sprocket drum gear worn. Muffler gasket burnt.
larry - November 4, 2017
👍 5 of 6 people found this instruction helpful
Tool Type
Chain Saw
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers
1. Removed the chain cover.
2. Removed the chain and the bar.
3. Removed the e-clip from the sprocket.
4. Removed the sprocket drum.
5. Installed the new sprocket drum.
2. Removed the chain and the bar.
3. Removed the e-clip from the sprocket.
4. Removed the sprocket drum.
5. Installed the new sprocket drum.
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Original Sprocket Wore Out.
Joseph - January 2, 2019
👍 1 of 1 people found this instruction helpful
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Pliers, Socket set
Parts Used
1. Took off Bar & Chain Cover.
2. Removed Bar & Chain.
3. Removed C clip from Sprocket Bearing.
4. Slid the Old Sprocket Bearing off shaft & threw away.
5. Slid the New Sprocket Bearing on shafts and replaced the C clip.
6. Reinstalled Bar & Chain and Cover.
7. Adjusted Chain Tension.
8. Put Tools Away and fired the Chain Saw up.
I saved $60 by doing this 15 minute repair myself.
2. Removed Bar & Chain.
3. Removed C clip from Sprocket Bearing.
4. Slid the Old Sprocket Bearing off shaft & threw away.
5. Slid the New Sprocket Bearing on shafts and replaced the C clip.
6. Reinstalled Bar & Chain and Cover.
7. Adjusted Chain Tension.
8. Put Tools Away and fired the Chain Saw up.
I saved $60 by doing this 15 minute repair myself.
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Chainsaw sprocket was worn.
Wayne - July 2, 2017
👍 2 of 3 people found this instruction helpful
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Parts Used
Removed the clip and the washer. Then pulled the old sprocket off. Put the new one on. Put the washer back on, then pushed the snap ring over the shaft to hold the washer and the sprocket on. Replacement Parts were very easy to order from. Will order from them again when I need parts.
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Chain drive hub.
Larry - June 29, 2017
👍 1 of 3 people found this instruction helpful
Tool Type
Chain Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
Took it off, put the new one on.
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Worn sprocket
Cloyd - May 6, 2017
👍 1 of 3 people found this instruction helpful
Tool Type
Chain Saw
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Socket set
Parts Used
Loosen the tension on the blade
Remove the chain cover assembly
Remove the bar and chain
Remove the e-clip and washer from in front of the sprocket, remove the worn sprocket
Install the new sprocket replace the washer and e-clip
Install the bar and blade
Install the chain cover
Adjust the chain to the right tension
Remove the chain cover assembly
Remove the bar and chain
Remove the e-clip and washer from in front of the sprocket, remove the worn sprocket
Install the new sprocket replace the washer and e-clip
Install the bar and blade
Install the chain cover
Adjust the chain to the right tension
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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.
