Medium
15-30 minutes
This Trigger switch has 4 internal terminals. This authentic Milwaukee replacement part is sold individually.
rnrnSwitches are commonly replaced parts in power tools. A switch handles all on/off and variable speed functions. They also have a role in electric breaking; they can momentarily reverse electrical polarity. Because switches use mechanical internals, they tend to degrade and wear out over time, eventually requiring replacement. Some common signs of a broken or failing switch are:rn
Switch 23-66-0177
OEM part for: Milwaukee
Part Number: 23-66-0177
$18.83
In Stock
Ships within 1 business day 
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Product Description ?
- Classification: Part
- Weight: 0.04 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This part will fit the following 114 machines
Milwaukee
1250-1 (SER 459-26200) 1/2" Reversing Drill View Diagrams & Manuals
1250-1 (SER 459A) 1/2" Reversing Drill View Diagrams & Manuals
1001-1 (SER 491-193500) Drill View Diagrams & Manuals
5351 (SER 488-57500) Rotary Hammer View Diagrams & Manuals
6407 (SER 633-1001) Circular Saw View Diagrams & Manuals
0871 (SER 486-9000) Drill View Diagrams & Manuals
1201-1 (SER 495-66000) Drill View Diagrams & Manuals
1201-1 (SER 495-78473) Drill View Diagrams & Manuals
6365 (SER 546-59000) Circular Saw View Diagrams & Manuals
5351 (SER 488-27500) Rotary Hammer View Diagrams & Manuals
5351 (SER 488-53000) Rotary Hammer View Diagrams & Manuals
5361 (SER 489-9500) Rotary Hammer View Diagrams & Manuals
5388 (SER 609-1001) Rotary Hammer View Diagrams & Manuals
5388 (SER 609-11300) Rotary Hammer View Diagrams & Manuals
5388 (SER 609-15900) Rotary Hammer View Diagrams & Manuals
5388 (SER 609-9596) Rotary Hammer View Diagrams & Manuals
5398 (SER 556-1001) Hammer Drill View Diagrams & Manuals
5398 (SER 556-14000) Hammer Drill View Diagrams & Manuals
5398 (SER 556-55280) "D" Handle Hammer Drill View Diagrams & Manuals
5398 (SER 556-59800) "D" Handle Hammer Drill View Diagrams & Manuals
5398 (SER 556-63000) "D" Handle Hammer Drill View Diagrams & Manuals
5398 (SER 556-67000) "D" Handle Hammer Drill View Diagrams & Manuals
5398 (SER 556-78100) "D" Handle Hammer Drill View Diagrams & Manuals
0801 (SER 485-1001) Electric Drill / Driver View Diagrams & Manuals
0801 (SER 485-1151) Electric Drill / Driver View Diagrams & Manuals
0801 (SER 485-3723) Electric Drill / Driver View Diagrams & Manuals
0801 (SER 485-5200) Electric Drill / Driver View Diagrams & Manuals
0801 (SER 485-6500) Electric Drill / Driver View Diagrams & Manuals
0801 (SER 485-9000) Electric Drill / Driver View Diagrams & Manuals
0805 (SER 484-1001) Electric Drill / Driver View Diagrams & Manuals
0805 (SER 484-1151) Electric Drill / Driver View Diagrams & Manuals
1001-1 (SER 491-230000) Electric Drill / Driver View Diagrams & Manuals
1001-1 (SER 491-258006) Electric Drill / Driver View Diagrams & Manuals
1001-1 (SER 491-264275) Electric Drill / Driver View Diagrams & Manuals
1001-1 (SER 491A) Electric Drill / Driver View Diagrams & Manuals
1001-1 (SER 491B) Electric Drill / Driver View Diagrams & Manuals
1001-1 (SER 491C) Electric Drill / Driver View Diagrams & Manuals
1250-1 (SER 459B) Electric Drill / Driver View Diagrams & Manuals
1250-1 (SER 459C) Electric Drill / Driver View Diagrams & Manuals
1250-1 (SER 459D) Electric Drill / Driver View Diagrams & Manuals
6407 (SER 633-11501) Circular Saw View Diagrams & Manuals
6511 (SER 460A) Sawzall View Diagrams & Manuals
6365-2 (SER 546-86264) Circular Saw View Diagrams & Manuals
6405 (SER 552-7500) Circular Saw View Diagrams & Manuals
1001 (SER 490-8544) Drill View Diagrams & Manuals
1101-1 (SER 493B) Reversing Drill View Diagrams & Manuals
6511 (SER 460C) Sawzall View Diagrams & Manuals
6365 (SER 546B) Circular Saw View Diagrams & Manuals
6367 (SER 632B) Circular Saw View Diagrams & Manuals
6511 (SER 460-1277363) Sawzall View Diagrams & Manuals
6511 (SER 460D) Sawzall View Diagrams & Manuals
6511 (SER 460B) Sawzall View Diagrams & Manuals
1101-1 (SER 493-226500) 1/2" Reversing Drill View Diagrams & Manuals
1101-1 (SER 493-317519) 1/2" Reversing Drill View Diagrams & Manuals
1101-1 (SER 493-325077) 1/2" Reversing Drill View Diagrams & Manuals
1101-1 (SER 493A) 1/2" Reversing Drill View Diagrams & Manuals
1101-1 (SER 493C) 1/2" Reversing Drill View Diagrams & Manuals
1101-1 (SER 493D) 1/2" Reversing Drill View Diagrams & Manuals
1101-1 (SER 493E) 1/2" Reversing Drill View Diagrams & Manuals
5351 (SER 488-1001) 3/4" Rotary Hammer View Diagrams & Manuals
5351 (SER 488-16100) 3/4" Rotary Hammer View Diagrams & Manuals
5351 (SER 488-1702) 3/4" Rotary Hammer View Diagrams & Manuals
5361 (SER 489-1001) 3/4" Electric Hammer View Diagrams & Manuals
5361 (SER 489-1322) 3/4" Electric Hammer View Diagrams & Manuals
5361 (SER 489-7000) 3/4" Electric Hammer View Diagrams & Manuals
6405-6 (552B) 8-1/4" Circular Saw View Diagrams & Manuals
1001 (SER 490-1001) 1/2" Drill View Diagrams & Manuals
1001 (SER 490-1501) 1/2" Drill View Diagrams & Manuals
1001 (SER 490-16200) 1/2" Drill View Diagrams & Manuals
1001 (SER 490-18300) 1/2" Drill View Diagrams & Manuals
1101 (SER 492-1001) 1/2" Drill View Diagrams & Manuals
1101 (SER 492-1576) 1/2" Drill View Diagrams & Manuals
1101 (SER 492-8081) 1/2" Drill View Diagrams & Manuals
1101 (SER 492-14200) 1/2" Drill View Diagrams & Manuals
1101 (SER 492-16000) 1/2" Drill View Diagrams & Manuals
1201-1 (SER 495-80128) 1/2" Reversing Drill View Diagrams & Manuals
1201-1 (SER 495A) 1/2" Reversing Drill View Diagrams & Manuals
1201-1 (SER 495B) 1/2" Reversing Drill View Diagrams & Manuals
1201-1 (SER 495C) 1/2" Reversing Drill View Diagrams & Manuals
1201-1 (SER 495D) 1/2" Reversing Drill View Diagrams & Manuals
1201 (SER 494-1001) 1/2" Drill View Diagrams & Manuals
1201 (SER 494-1152) 1/2" Drill View Diagrams & Manuals
0871 (SER 486-1001) 3/8" Drill View Diagrams & Manuals
0871 (SER 486-1201) 3/8" Drill View Diagrams & Manuals
0871 (SER 486-3158) 3/8" Drill View Diagrams & Manuals
0871 (SER 486-7300) 3/8" Drill View Diagrams & Manuals
0871 (SER 486-13000) 3/8" Drill View Diagrams & Manuals
0875 (SER 487-1001) Double Insulated Drill View Diagrams & Manuals
0875 (SER 487-1202) Double Insulated Drill View Diagrams & Manuals
6405 (SER 552-71600) 8-1/4" Circular Saw View Diagrams & Manuals
6405 (SER 552-106001) 8-1/4" Circular Saw View Diagrams & Manuals
6405 (SER 552-112885) 8-1/4" Circular Saw View Diagrams & Manuals
6405 (SER 552A) 8-1/4" Circular Saw View Diagrams & Manuals
6405 (SER 552B) 8-1/4" Circular Saw View Diagrams & Manuals
6407 (SER 633-7100) 8-1/4" D.I. Circular Saw View Diagrams & Manuals
6407 (SER 633-12791) 8-1/4" D.I. Circular Saw View Diagrams & Manuals
6407 (SER 633A) 8-1/4" D.I. Circular Saw View Diagrams & Manuals
6407 (SER 633B) 8-1/4" D.I. Circular Saw View Diagrams & Manuals
6511 (SER 460-838000) Two Speed Sawzall View Diagrams & Manuals
6511 (SER 460-1302847) Two Speed Sawzall View Diagrams & Manuals
6512 (SER 483-122000) Two Speed Double Insulated Sawzall View Diagrams & Manuals
6512 (SER 483-159892) Two Speed Double Insulated Sawzall View Diagrams & Manuals
6512 (SER 483-162042) Two Speed Double Insulated Sawzall View Diagrams & Manuals
6512 (SER 483A) Two Speed Double Insulated Sawzall View Diagrams & Manuals
6367 (SER 632-1001) 7-1/4" Circular Saw View Diagrams & Manuals
6367 (SER 632-18900) 7-1/4" Circular Saw View Diagrams & Manuals
6367 (SER 632-29572) 7-1/4" Circular Saw View Diagrams & Manuals
6367 (SER 632-34730) 7-1/4" Circular Saw View Diagrams & Manuals
6367 (SER 632A) 7-1/4" Circular Saw View Diagrams & Manuals
6365 (SER 546-154000) 7-1/4" Circular Saw View Diagrams & Manuals
6365 (SER 546-470501) 7-1/4" Circular Saw View Diagrams & Manuals
6365 (SER 546-731342) 7-1/4" Circular Saw View Diagrams & Manuals
6365 (SER 546-887048) 7-1/4" Circular Saw View Diagrams & Manuals
6365 (SER 546A) 7-1/4" Circular Saw View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Drill Parts
- Rotary Hammer Parts
- Circular Saw Parts
- Saw Parts
- Hammer Drill Parts
- Electric Drill Parts
This part replaces obsolete part #: 23-66-0167, 23-66-0505
Customer Part Reviews ?
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Milwaukee replacement switch
Exact replacement switch I needed, reasonably priced and fast shipping!
Guest -
March 19, 2024
Verified Purchase
As expected
New switch does wire differently but functions like the original.
Guest -
July 6, 2023
Verified Purchase
Knowledgeable and fast shipping
Knowledgeable and fast shipping
Guest -
January 31, 2023
Verified Purchase
Fit perfect
Item was as described and fit like a glove. Quick delivery
Guest -
January 6, 2023
Verified Purchase
Just what I needed
On backorder for awhile but kept me up on availability and finally got it. Thanks
Guest -
September 7, 2022
Verified Purchase
Great Trigger
It was exact replacement, worked great, shipped fast.
Guest -
September 15, 2021
Verified Purchase
Fits perfect
Great part
Guest -
August 30, 2021
Verified Purchase
Easy repair
The part came quickly and the repair went smoothly. Great company.
Guest -
April 11, 2021
Verified Purchase
Easy repair
Arrived quicker than expected.
Guest -
April 7, 2021
Verified Purchase
Great part
Fast delivery, thx you. Will buy from you again.
Guest -
May 28, 2020
Verified Purchase
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Verified Purchase
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Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
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We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Does this fit my product?Questions & Answers for Switch
Can't find this model on your site.Need a switch for 18v Fuel circular saw
John B
for model number 2631-20
asked on 2024-01-02
Hello John, Thank you for your inquiry. Researching your model, we show the compatible on/off switch as part# 23-66-2635. We hope this helps.
eReplacementParts Team January 02, 2024
Looking for part # for on/off switch for above circular saw
Louie
for model number The model# is 6365. The serial # is 546-728716
asked on 2023-03-05
Hello Louie, Thank you for your inquiry. We have researched the model you have provided and have found the part you are looking for is 23-66-0177. Good luck with your repair.
eReplacementParts Team March 05, 2023
Is this the correct trigger for the saw model 2731-20 m18 circular saw
Bob
for model number 2731-20
asked on 2023-01-14
Hello Bob, Thank you for your inquiry. We have researched the model you have provided and do not show this part as compatible. The compatible part number is 23-66-2639. We hope this helps.
eReplacementParts Team January 14, 2023
Just wondering if this trigger switch will work with this model
Brice
for model number Milwaukee 2732-20 m18 saw
asked on 2022-07-27
Hi Brice,
Thank you for your question. This would not be the correct trigger switch for your circular saw. The part number listed under your model number for the trigger switch is 23-66-2635. If you need help placing an order for it, customer service is open 7 days a week and anyone will be happy to assist you. Please feel free to give us a call. We look forward to hearing from you!
eReplacementParts Team July 27, 2022
Looking for the correct switch for my circular saw? 546-894437
Rick
for model number 6365
asked on 2022-07-02
Hello Rick, thank you for your question. Yes, the switch 23-66-0177 you had chosen is compatible with your model. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you.
eReplacementParts Team July 02, 2022
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.
Switch would not release to shut off.
Richard - November 23, 2015
👍 10 of 12 people found this instruction helpful
Tool Type
Circular Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, wire strippers
Parts Used
Took off the handle around the switch and removed bad switch. Connected new wires, put new switch back in place and replaced handle. This would have been a lot simpler if the new switch had some instructions included explaining that the replacement switch did not wire exactly like the old one. I went back to ereplacementparts website to see that other folks had the same problem. After that it was much easier.
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Needed new switch for my Milwaukee Circular Saw
Don - December 8, 2016
👍 4 of 5 people found this instruction helpful
Tool Type
Circular Saw
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Parts Used
1. Took old switch out.
2. Took meter to switch to confirm setup of new switch. (Orientation is different than old switch)
3. Cut two pieces of wire to extend the leads to work with new switch.
4. Screwed in the leads to the switch and put back in saw.
5. Tested the switch before closing up the handle to confirm switch was properly wired.
6. Screw back handle onto saw.
2. Took meter to switch to confirm setup of new switch. (Orientation is different than old switch)
3. Cut two pieces of wire to extend the leads to work with new switch.
4. Screwed in the leads to the switch and put back in saw.
5. Tested the switch before closing up the handle to confirm switch was properly wired.
6. Screw back handle onto saw.
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bad switch
Paul - September 23, 2019
👍 1 of 1 people found this instruction helpful
Tool Type
Circular Saw
Difficulty
Hard
Time
More than 2 hours
Tools Used
Screwdriver, wire crimper, wire stripper, wire cutter, shrink tubing
Parts Used
This switch is slightly different than the original. The input & output terminals are in a different arrangement. That made this harder than it should be.
Searched online for instructions, found service bulletin 58-01-0753 from Milwaukee Tool describing installation. It can be obtained directly from Milwaukee Tool:
https:///documents.milwaukeetool.com/58-01-0753.pdf
Searched online for instructions, found service bulletin 58-01-0753 from Milwaukee Tool describing installation. It can be obtained directly from Milwaukee Tool:
https:///documents.milwaukeetool.com/58-01-0753.pdf
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Switch was burned up
Kyle - December 28, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Electric Drill
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, wire terminals
Parts Used
Took apart the case
Be careful not to mix up wire connections obviously
There was an extra wire that went to the directional switch,so i just hooked it to a hot wire
I used round terminals to finish the connections because those screws were tiny.
Overall it was an easy repair.
MAKE CERTAIN you put the screws in and snug them as soon as you open the package .
it is a contact switch and there are small copper part that are loose inside the switch they fell out when I took the switch apart.
Turns out you don't have to take the switch apart but that is how the old switch went together
hope that helps someone
Be careful not to mix up wire connections obviously
There was an extra wire that went to the directional switch,so i just hooked it to a hot wire
I used round terminals to finish the connections because those screws were tiny.
Overall it was an easy repair.
MAKE CERTAIN you put the screws in and snug them as soon as you open the package .
it is a contact switch and there are small copper part that are loose inside the switch they fell out when I took the switch apart.
Turns out you don't have to take the switch apart but that is how the old switch went together
hope that helps someone
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Thanks for voting and helping fellow customers!
Electrical Cord was frayed.
Michael - May 23, 2023
Tool Type
Circular Saw
Difficulty
Medium
Time
Less than 15 minutes
Tools Used
Screwdriver, Wrench Set, Nutdriver, Crumpets
Pulled cover exposing electrical cord and switch. Needed to extend 2 wires to fit the replacement switch.
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Thanks for voting and helping fellow customers!
switch repair
Thomas - June 1, 2020
Tool Type
Circular Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
After removing the handle from the Milwaukee Circular Saw the rest was easy! The new switch is wired differently though. Use a meter to reconnect the switch is my advice. The switch has screw fasteners instead of the (Push and Grab) style .which was a big improvement. I have had this saw since the very early 90 and I was pleased to find a switch!!! Thank You EREPLACEMENT Parts. com
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trigger would stick "on" when I let go of it and saw would continue to run when it should have turned off.
Kendall - May 20, 2020
Tool Type
Circular Saw
Difficulty
Hard
Time
1-2 hours
Tools Used
Screwdriver, Pliers, star bits, soldering iron, wire strippers, wire nuts, electr
Parts Used
The trigger was not an exact replacement part. The wiring configuration was different from the original trigger. It had to be re-wired inside of the saw handle as two of the original wires were too short to reach the terminals on the replacement switch.
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replaced switch on my 35 year old Milwaukee circular saw.
Tom - April 1, 2020
Tool Type
Circular Saw
Difficulty
Medium
Time
Less than 15 minutes
Tools Used
Screwdriver, Wire stripper
Parts Used
The original switch was discontinued and the new switch is wired differently but with a little
help from some instructional videos she runs again!
help from some instructional videos she runs again!
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Thanks for voting and helping fellow customers!
Switch would not shut off
Michael - January 4, 2020
Tool Type
Circular Saw
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Soldering iron
Parts Used
I removed the old switch. Unfortunately there was not an exact replacement switch. Found a switch for a newer model saw but had to rewire and add two short lengths of wire to make it work. Need to use a multi meter the new switch is wired opposite the old switch. Had to use a drill bit to modify the mounting hole to make it a little larger. Works great now
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Saw switch failed
Joseph - October 19, 2019
Tool Type
Circular Saw
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Star driver, crimping tool for electrical connectors
Parts Used
1. Removed star screws and nuts from handle and removed cover.
2. Lifted out old switch and wires.
3. Used a Jewelers screwdriver to push open wire spring contacts in old switch to release wires.
4. New switch contact configuration was different from original switch so the neutral wire from the saw motor had to have a short piece spliced on to make it long enough to reach the side of the switch where it needed to connected. Used crimp on connector for this task. (There should be a warning about the connection points on the new switch not being the same as the old switch because had I hooked them up to the same locations it would have been a dead short.)
5. Crimped on ring connectors on the wires that fit the screws on the new switch, which used screw connections instead of spring press in connectors like old switch.
6. Connected wires to the new switch with screws provided.
7. Installed switch on posts in the handle and routed wire into wire guides in handle.
8. Replaced handle cover.
2. Lifted out old switch and wires.
3. Used a Jewelers screwdriver to push open wire spring contacts in old switch to release wires.
4. New switch contact configuration was different from original switch so the neutral wire from the saw motor had to have a short piece spliced on to make it long enough to reach the side of the switch where it needed to connected. Used crimp on connector for this task. (There should be a warning about the connection points on the new switch not being the same as the old switch because had I hooked them up to the same locations it would have been a dead short.)
5. Crimped on ring connectors on the wires that fit the screws on the new switch, which used screw connections instead of spring press in connectors like old switch.
6. Connected wires to the new switch with screws provided.
7. Installed switch on posts in the handle and routed wire into wire guides in handle.
8. Replaced handle cover.
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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.
