Easy
15-30 minutes
Diode Assembly 23-38-2840
OEM part for: Milwaukee
Part Number: 23-38-2840
$4.99
In Stock
Order within the next 5 hours and your part ships today! 
Jump To:
Frequently Purchased Together ?
Compatibility
This Diode Assembly will fit the following 4 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Milwaukee
This item works with the following types of products:
- Circular Saw Parts
- Saw Parts
Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
Ask our Team
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 Diode Assembly
I just changed the switch in the saw. Mow the LED comes on, but the motor doesn't start. Could it be a bad diode, or is it another component?
Jethro
for model number 2730-20
asked on 2022-05-01
Hello Jethro, thank you for writing. To be sure, please ensure the correct parts are used. The Switch is part 2127441 and the Switch Lock-Out Button is part 42-42-0345. Yes, the diode 23-38-2840 is the correct next assumption. This is shown by reading a past customers testimonial " took plenty of photos before removing switch and diode. Special attention to wire colors and position before replacing cover. T25 and t15? Needed. Minimum 2 inches on some screws. Easy really, just take photos and take your time. Probably never have to replace again. Buy both parts. Switch and diode. One or both can be bad."
eReplacementParts Team May 01, 2022
I am looking for a trigger and diode for this and don't see the model number. Would the 2731-21 parts work on this saw ?
Shawn
for model number 2731-20
asked on 2022-02-03
Hello Shawn, thank you for your question. Based on our research on your model, the Diode and trigger Switch Kit is part 23-66-2639. We hope this helps.
eReplacementParts Team February 03, 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.
Intermittent operation when pulling trigger
Michael - February 3, 2022
Tool Type
Circular Saw
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Parts Used
1. Remove battery
2. Remove blade
3. Remove screws from the main case
4. Disconnect the shoe height adjustment lever and remove the shaft.
5. Open the case, pretty straightforward, nothing will come springing out.
6. Slide the old switch and diode out, take a photograph of the wire layout.
7. Install the new diode to the new switch with the wires in the same position.
*Now is a good time to blow out any dust inside the case, my saw was full of MDF dust.
8. Close the case, making sure all wiring is tucked back inside neatly.
9. Install and tighten screws holding case together. Install the height adjustment mechanism and lever.
10. Install a battery and see how it works. (Mine fired off every trigger pull now, as it should).
11. Reinstall the blade. (After removing the battery again, of course).
2. Remove blade
3. Remove screws from the main case
4. Disconnect the shoe height adjustment lever and remove the shaft.
5. Open the case, pretty straightforward, nothing will come springing out.
6. Slide the old switch and diode out, take a photograph of the wire layout.
7. Install the new diode to the new switch with the wires in the same position.
*Now is a good time to blow out any dust inside the case, my saw was full of MDF dust.
8. Close the case, making sure all wiring is tucked back inside neatly.
9. Install and tighten screws holding case together. Install the height adjustment mechanism and lever.
10. Install a battery and see how it works. (Mine fired off every trigger pull now, as it should).
11. Reinstall the blade. (After removing the battery again, of course).
Did you find this story helpful?
Thanks for voting and helping fellow customers!
No power when the switch was engaged
Bart - November 20, 2021
Tool Type
Circular Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
Removed the torx screws, and the joist hanger assembly. Replaced the switch and diode and reassembled.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Would not always work when trigger pulled
James - September 8, 2021
Tool Type
Circular Saw
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, 18v drill for disassembly only
Parts Used
Ordered new trigger AND diode.
Like 3$ more for diode Took photos before removing screws. Pretty easy pull apart after all screws removed. Took plenty of photos before removing switch and diode. Special attention to wire colors and position before replacing cover. T25 and t15? Needed. Minimum 2 inches on some screws. Easy really, just take photos and take your time. Probably never have to replace again. Buy both parts. Switch and diode. One or both can be bad. Hardly worth your time to just do one. Fix it RIGHT the first time.
Like 3$ more for diode Took photos before removing screws. Pretty easy pull apart after all screws removed. Took plenty of photos before removing switch and diode. Special attention to wire colors and position before replacing cover. T25 and t15? Needed. Minimum 2 inches on some screws. Easy really, just take photos and take your time. Probably never have to replace again. Buy both parts. Switch and diode. One or both can be bad. Hardly worth your time to just do one. Fix it RIGHT the first time.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
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.
