Easy
30-60 minutes
This replacement motor assembly is a high quality item that is supplied directly from original tool manufacturer for use in Milwaukee impact drivers. It is a complete assembly which includes the motor, bearing and the bevel gear. Please note this replacement service motor assembly is sold individually. When replacing the motor make sure to now how the old one is wired, if it helps you may want to take a picture of the old assembly.
Motor Service Assembly 23-30-0090
OEM part for: Milwaukee
Part Number: 23-30-0090
$24.72
In Stock
Order within the next 13 hours and your part ships today! 
Compatibility
This part will fit the following 14 machines
Milwaukee
2450-20 (SER B59A) 12 Volt Impact Driver View Diagrams & Manuals
2450-22 (SER B59A) 12 Volt Impact Driver View Diagrams & Manuals
2451-20 (SER C08A) 12V 3/8" Impact Wrench View Diagrams & Manuals
2450-20 (B59B) 12 Volt Impact Driver View Diagrams & Manuals
2450-21 (C08B) 12 Volt 3/8" Square Drive Impact Driver View Diagrams & Manuals
2450-20 (SER B59C) 12 Volt Impact Driver View Diagrams & Manuals
2451-20 (SER C08B) 12 Volt 3/8" Square Drive Impact Driver View Diagrams & Manuals
2451-20 (SER C08C) 12 Volt 3/8" Square Drive Impact Driver View Diagrams & Manuals
2451-059 (SER D28A) 12 Volt 3/8" Square Drive Impact Driver View Diagrams & Manuals
2451-059 (SER D28B) 12 Volt 3/8" Square Drive Impact Driver View Diagrams & Manuals
245020 12 Volt Impact Driver View Diagrams & Manuals
245022 12 Volt Impact Driver View Diagrams & Manuals
245120 12 Volt 3/8" Square Drive Impact Driver View Diagrams & Manuals
245122 12 Volt 3/8" Square Drive Impact Driver View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Impact Driver Parts
- Impact Wrench Parts
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Works like new
Easy repair. Youtube Has a good video.
Guest -
December 28, 2021
Verified Purchase
Just What I need...
Complete satisfaction, fits and work right.
Mario -
October 12, 2020
Verified Purchase
Perfect fitting part
The replacement motor for my Milwaukee impact driver fit and worked perfectly. It only took two days to receive the part.
Guest -
December 27, 2019
Verified Purchase
easy Repair
Very easy motor replacement, great to have impact driver working again
Guest -
May 29, 2019
Verified Purchase
t
t
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t days ago
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.
Would not run intermittently.
James - November 14, 2016
👍 4 of 4 people found this instruction helpful
Tool Type
Impact Driver
Difficulty
Medium
Time
15-30 minutes
Tools Used
Nutdriver, Soldering iron
Parts Used
1. Removed screws holding two halves together.
2. Removed screws holding nosepiece on.
3. Removed 2 pins that hold motor to drive.
4. Desoldered 2 wires on motor.
5. Reversed to assemble.
Mine also had a wire loose at the board that needed resoldering.
2. Removed screws holding nosepiece on.
3. Removed 2 pins that hold motor to drive.
4. Desoldered 2 wires on motor.
5. Reversed to assemble.
Mine also had a wire loose at the board that needed resoldering.
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Bad brushes
Noland - February 4, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Impact Driver
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Solder gun and screw gun
Parts Used
Went great easy unsoldered connections and installed new motor and soldered new wires and motor in
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Burnt. 7 year of hard working
Nipun - November 10, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Impact Driver
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Soldering gun for wires.
Parts Used
Disassemble Milwaukee M12 impact gun.
Remove all the body screws (T9) n (T20)
Use small punch to remove guide locking pins. Separate front impact housing.
Use soldering gun to melt lead on wires(on the motor) by heating them. Re install in reverse order. Function check before installing body screws.
Remove all the body screws (T9) n (T20)
Use small punch to remove guide locking pins. Separate front impact housing.
Use soldering gun to melt lead on wires(on the motor) by heating them. Re install in reverse order. Function check before installing body screws.
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Not working one Way, lost power
Mario - October 12, 2020
Tool Type
Impact Driver
Difficulty
Medium
Time
30-60 minutes
Tools Used
, Impact driver
Parts Used
Separate cases
Unsolder 2 wires from bad motor
Solder wires back to new motor
Position motor in the case
Screw cases back
Unsolder 2 wires from bad motor
Solder wires back to new motor
Position motor in the case
Screw cases back
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Motor controls shorted out, motor was damaged
Mike - September 10, 2017
Tool Type
Impact Driver
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Soldering gun, torx screw driver sizes 9 and 15
1. Disassembled the impact gun.
2. Unpacked new parts and laid them out on workbench
3. Disassembled gear train, cleaned, regreased and reassembled.
4. Soldered motor leads from controls to motor ( they are marked )
5.Using old parts as a guide assembled new parts to gearcase then into new handle.
6 Installed screws and special clip in battery well.
7. Finally removed old hog ring and rubber ring and replaced with new ones.
2. Unpacked new parts and laid them out on workbench
3. Disassembled gear train, cleaned, regreased and reassembled.
4. Soldered motor leads from controls to motor ( they are marked )
5.Using old parts as a guide assembled new parts to gearcase then into new handle.
6 Installed screws and special clip in battery well.
7. Finally removed old hog ring and rubber ring and replaced with new ones.
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Worn brushes.
Dana - July 17, 2017
Tool Type
Impact Driver
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Soldering iron
Parts Used
1. Took it apart.
2. Removed the old brushes.
3. Attached the new.
4. Reassembled and tested.
2. Removed the old brushes.
3. Attached the new.
4. Reassembled and tested.
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Motor stopped running
Allison - January 30, 2016
Tool Type
Impact Driver
Difficulty
Easy
Time
1-2 hours
Tools Used
Screwdriver, soldering iron
Parts Used
Remove screws from housing assembly. Remove one half of housing, being careful not to let any parts come out of the housing. Take a picture of the internal parts of the tool. Carefully remove the motor and leads from the tool, then replace it with the new motor. Make sure all of the part are located as in the picture. Then assemble housing.
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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.
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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.
