Easy
Less than 15 minutes
This is a ten (10) pin sprocket assembled by original manufacturer. It is used in some Makita planers. Sprockets engage gears and/or chains. These parts are designed to be replaced fairly often due to wear and tear from regular use. Sold individually.
Sprocket 10 221525-3
OEM part for: Makita
Part Number: 221525-3
$4.99
In Stock
Ships within 1 business day 
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Compatibility
This Sprocket 10 will fit the following 3 machine. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 1 of 3 matching models.
Makita
3 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Makita
This item works with the following types of products:
- Planer
Repair Videos ?
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Sprocket 10
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Great place to shop.!!
The parts that I need was exactly that I got it, great price and fast delivery
I will shopping as soon I need it
Thanks.!!
Guest -
September 29, 2020
Verified Purchase
Long time coming but everything fit great
iGlobal -
September 28, 2020
Verified Purchase
Easy-to-use website for getting all the necessary parts. thank you!
Prompt delivery and all parts are in good shape.
Guest -
February 15, 2020
Verified Purchase
Easy online ordering Fast shipping
Easy online site and fast shipping
Guest -
January 20, 2020
Verified Purchase
Makita Planer Sprocket
The replacement sprocket was machined perfectly and replaced one on the drive shaft that had been stripped after a improper bade change.
Jim -
July 8, 2019
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.
Planer feed mechanism stoped
Victor - August 19, 2016
👍 2 of 2 people found this instruction helpful
Tool Type
Planer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
1. Removed side panel.
2. Replaced drive sprocket and tension spring, sleeve, and screw that were damaged when sprocket failed.
2. Replaced drive sprocket and tension spring, sleeve, and screw that were damaged when sprocket failed.
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Board would not feed into Makita benchtop planer
John - October 11, 2022
Tool Type
Planer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Pliers, Allen Wrench
Parts Used
Replaced one of the sprockets and tightened the chain. Very easy fix.
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Inside of gear stripped due to screw loosening
Guy - October 31, 2019
Tool Type
Planer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Pliers
Parts Used
Removed left side cover...undid chain tightner screw....undid center screw holding gear
replace gear with Locktite Red on the screw threads...replaced chain tightner....Reattached left side cover.....
replace gear with Locktite Red on the screw threads...replaced chain tightner....Reattached left side cover.....
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Boards would not feed through the planer.
Jim - July 9, 2019
Tool Type
Planer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Pliers, Hex-head Wrench
Parts Used
1. Removed the side panel that covers the drive chain.
2. Removed the spring that holds the drive chain snug against the sprockets.
3. Un-did the hex nut and removed a damaged drive shaft sprocket that turns the feed
rollers.
4. Installed the replacement sprocket and re-tightened the hex nut.
5. Re-attached the drive chain spring and the side panel.
*** When I described the problem on the eReplacement web site, the top suggested repair
was to replace a sprocket. This suggestion was exactly correct.
2. Removed the spring that holds the drive chain snug against the sprockets.
3. Un-did the hex nut and removed a damaged drive shaft sprocket that turns the feed
rollers.
4. Installed the replacement sprocket and re-tightened the hex nut.
5. Re-attached the drive chain spring and the side panel.
*** When I described the problem on the eReplacement web site, the top suggested repair
was to replace a sprocket. This suggestion was exactly correct.
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Thanks for voting and helping fellow customers!
The feed rollers quit working
David - May 16, 2017
Tool Type
Planer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Allen wrench
Parts Used
Disconnect power! And even off, the blades are very sharp, and will slice your fingers very easily. Keep your fingers away.
1. Remove the side cover
2. Notice the sprocket on the motor is stripped, and the bolt is loose. Poor assembly, or teenagers pushing the feed too much? Can't tell.
3. Remove the bad sprocket with an allen wrench.
4. Remove the sprocket farthest from the motor. This turned out to be the easiest way to get the chain back on, for me.
5. Install the new sprocket on the motor spindle, and wrap with the chain, around the tensioner.
6. Re-install the feed sprocket, moving the feed roller as necessary to align the spindle key with the sprocket (which is constrained by the chain).
7. Turn on the planer and make sure everything is lined up and the feed rollers are moving nicely.
8. Replace the cover
1. Remove the side cover
2. Notice the sprocket on the motor is stripped, and the bolt is loose. Poor assembly, or teenagers pushing the feed too much? Can't tell.
3. Remove the bad sprocket with an allen wrench.
4. Remove the sprocket farthest from the motor. This turned out to be the easiest way to get the chain back on, for me.
5. Install the new sprocket on the motor spindle, and wrap with the chain, around the tensioner.
6. Re-install the feed sprocket, moving the feed roller as necessary to align the spindle key with the sprocket (which is constrained by the chain).
7. Turn on the planer and make sure everything is lined up and the feed rollers are moving nicely.
8. Replace the cover
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Thanks for voting and helping fellow customers!
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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.
