Part Location Diagram of 23-66-2665 Milwaukee Switch
See part 28 in the diagram
( Grid squares measure 1x1 inch )

Switch 23-66-2665

Manufactured by:
Milwaukee
ERP Number:
ERP10123803
Part Number:
23-66-2665
Original Equipment Manufacturer ?
In Stock
Delivers in 3-5 Business Days!

Easy 

15 - 30 mins 

(13 rated repairs) ?

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Product Description

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This is a Genuine OEM Milwaukee Replacement Push Button Switch used for Angle Grinders. It includes the screws used to attach the Lead Wires. Switches are commonly replaced part in power tools. A switch handles all on/off and variable speed functions. They also have a role in electric breaking because they can momentarily reverse electrical polarity. Since switches use mechanical internals, they tend to wear out over time and will eventually require replacement. A screw driver is needed to take the casing off of the tool to access the switch.

Frequently Purchased Together

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Troubleshooting

This part works with the following brands:
  • Milwaukee
This part works with the following products:
  • Angle Grinder
  • Sander Grinder

Customer Part Reviews

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5.0
Average Rating (out of 5):
★★★★★
★★★★★
(6 Reviews)
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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.

Easy 

15 - 30 mins 

(13 rated repairs) ?
  • 1
  • 2
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Sorry, we couldn't find any existing installation instruction that matched.

Unit would not turn off, would start as soon as plugged in.

Gerald from Dunedin, Florida

1 person found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
23-66-2665
Remove rear handle assembly make switch wiring diagram. Remove the wires from the old switch and replace them in the new switch. Attach handle assembly. Works great.
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Switch would not turn off

James from Sequim, Washington

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Pliers, Screw drivers
Parts Used:
23-66-2665
1. Remove screws holding handle togerher (T-20 torx bit)
2. Removed electrical spade connectors with needle nose pliers,
3. Slide switch out (make note of how the switch lock is positioned)
4. Slide in new switch
5. replaced old switch.
6. Connect spade connectors
7. Carefully align the wires and swit ch lock as you close the handle
8. Re-install the four handle screws
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Grinder would not power up when switch level depressed.

John from Blairsville, Pennsylvania

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers
Parts Used:
23-66-2665
Opened the Grinder housing cover.
Tested switch using Ohm meter from plug end to output terminals of the switch. Determined the switch was faulty on one pole.
Pulled old switch out of housing and removed the wire terminals.
Put the wire terminals on the new switch and reinstalled it into the grinder housing.
Re-in stalled the Grinder housing cover.
Power tested the grinder and it functioned.

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Switch stuck in the ON position.

Jon from Sioux Center, Iowa

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
23-66-2665
You will need a T10 screwdriver, or a longer T10 driver bit to remove recessed case screws.
Check YouTube for videos. EReplacementParts even has a few.
Tip: make sure all the wires are tucked in before putting the case halves back together.
Easy fix, a little over 15 minutes, faster after your first one.
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Grinder switch stay on

Paul from Madisonville, Texas

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Parts Used:
23-66-2665
Removed 4 screws replaced switch replaced Handle ad screws
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Milwaukee Vari-Speed 5\" Grinder quit working practically right out of the box

SIDNEY from MURFREESBORO, Tennessee

0 of 1 people found this instruction helpful.
Difficulty Level:
A Bit Difficult
Total Repair Time:
30 - 60 mins
Tools:
Screw drivers
This was a \"backup\" tool that sat new in the box on a shelf for a year or better until I needed it. So, when I finally opened it and started using it... it \"quit\" within a week... then Milwaukee \"Would Not Honor\" their \'so-called\' \"5yr-warranty!\" So, I re-boxed the \"basically new\" non-working grinder and put it back on a shel f for a few more years until I decided to try and fix it myself.

I assumed it was either the switch or the PCB, so I replaced both and it now works. My suggestion is take pictures and note where the wires route. The new switch did not come with some special clips but was able to reuse clips from the old switch. The only real difficult part is the reassembly... getting the wires and PCB stuffed back in position definitely takes patience.

I say \"Thanks\" to the people at eReplacementParts.com for keeping my order open until the manufacturer (Milwaukee) was finally able to supply the needed parts.
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Switch was bad, grinder stayed on all the time.

David from Goodlettsville, Tennessee

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Pliers, Screw drivers
Parts Used:
23-66-2665
Removed the screws and cover unplugged the switch, installed the new switch, put the cover on and installed screws.
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Tool would not shut off

Brian from Killingworth , Connecticut

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
Less than 15 mins
Tools:
Screw drivers
Parts Used:
23-66-2665
Replace the switch
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Power switch to grinder quit working.

Bryan from Forsyth, Georgia

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Parts Used:
23-66-2665
Use a multimeter to check the old switch. If it\'s bad replace. 4 torx bit screws on the handle, 2 screws for the power cord, and 2 wire connectors on back of the switch. The repair is straight forward.
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Switch wouldnÆt shut off

Steve from Omaha, Nebraska

0 of 1 people found this instruction helpful.
Difficulty Level:
Easy
Total Repair Time:
15 - 30 mins
Tools:
Screw drivers
Parts Used:
23-66-2665
After receiving the new switch sensor from ereplscement parts in 4 days I Removed housing and removed old sensor reassembled and now it works like it should
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Model Cross Reference

This part works with the following models:
ERP Number: ERP10123803
Manufacturer Part Number: 23-66-2665
Brand Model Number Description
Milwaukee 6116-30 Sander Grinder - Grinder
Milwaukee 6116-31 Sander Grinder - Grinder
Milwaukee 6116-33 Sander Grinder - Grinder
Milwaukee 6117-30 Angle Grinder - 5" HP Angle Grinder With Paddle Switch
Milwaukee 6117-31 Angle Grinder - 5" HP Angle Grinder With Paddle Switch
Milwaukee 6117-31B Angle Grinder - 6117-31b (C93a) 5 Hp Angle Grinder With Paddle Switch And Brake Parts
Milwaukee 6117-33 Angle Grinder - 5" HP Angle Grinder With Slide Switch
Milwaukee 6117-33D Angle Grinder - 5" HP Angle Grinder With Slide Switch
Milwaukee 6117-59 Angle Grinder - 6117-59 (D12a) 125mm Hp Angle Grinder With Slide Switch And Speed Dial Parts
Milwaukee 6117-59A Angle Grinder - 6117-59a (D71a) 125mm Hp Angle Grinder With Slide Switch And Speed Dial Parts
Milwaukee 6140-30 Angle Grinder - 4.5" Angle Grinder with Paddle Switch w/Lock-Off
Milwaukee 6140-33 Angle Grinder - 4.5" Angle Grinder with Slide Switch
Milwaukee 6142-30 Angle Grinder - Angle Grinder
Milwaukee 6142-31 Angle Grinder - Angle Grinder
Milwaukee 6143-31 Angle Grinder - Angle Grinder
Milwaukee 6146-30 Angle Grinder - 4.5" Compact Angle Grinder
Milwaukee 6146-31 Angle Grinder - 4.5" Compact Angle Grinder With Paddle Switch
Milwaukee 6146-33 Angle Grinder - 4.5" Compact Angle Grinder With Slide Switch
Milwaukee 6147-30 Angle Grinder - 4.5" Compact Angle Grinder With Paddle Switch
Milwaukee 6147-31 Angle Grinder - 4.5" Compact Angle Grinder With Paddle Switch
Milwaukee 6148-30 Angle Grinder - 4.5" Angle Grinder
Milwaukee 6148-31 Sander Grinder - Grinder
Milwaukee 6148-33 Sander Grinder - Grinder
Milwaukee 6148-59 Angle Grinder - Angle Grinder
Milwaukee 6148-59A Angle Grinder - Angle Grinder
Milwaukee 6149-59 Angle Grinder - 115mm Sag Slide Lock On
Milwaukee 6149-59A Angle Grinder - Angle Grinder
Milwaukee 6149-59B Angle Grinder - Angle Grinder
Milwaukee 6160-30 Sander Grinder - Grinder
Milwaukee 6160-31 Sander Grinder - Grinder