Easy
15-30 minutes
This is a soft rubber protective cover for the on/off switch on your tool. This authentic Makita replacement part is sold individually.
Switches are commonly replaced parts in power tools, handling all on/off and variable speed operations. They also have a role in electric breaking; they can momentarily reverse electrical polarity. Because switches use mechanical internals, they will degrade and wear out over time, eventually needing replacement. Some common signs of a broken or failing switch are:
Switch Cover 421145-5
OEM part for: Makita
Part Number: 421145-5
$4.99
In Stock
Ships within 1 business day 
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Product Description ?
- Classification: Part
- Weight: 0.01 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This Switch Cover will fit the following 6 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Makita
Show More Compatible ModelsThis item works with the following types of products:
- Saw Parts
- Rotary Hammer Parts
- Drill Parts
- Electric Drill Parts
This part replaces obsolete part #: 4211145-5
Customer Part Reviews ?
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Easy repair
I was able to quickly repair my saw and save lots of $$$.
Venita -
July 26, 2022
Verified Purchase
30 seconds and saw was running !
high quality parts
Guest -
March 9, 2021
Verified Purchase
Parts worked perfectly!!!
Everything works great!!!
Guest -
March 1, 2021
Verified Purchase
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 Switch Cover
What kind of grease is put on this chipi Hammer for maintenance.
Jose
for model number HK1810
asked on 2023-02-28
Hi Jose, Thank you for the question. Makita Hammer Grease Part Number: A-90582. I hope this helps and good luck with your repair.
eReplacementParts Team February 28, 2023
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.
Electric cord was deteriorating and switch cover rubber had deteriorated.
Robert - August 22, 2023
Tool Type
Electric Drill
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Soldering gun
Parts Used
Removed Phillips screws from the back housing. Removed cord, rubber boot over cord and switch. Removed rubber switch cover from switch, discarded. Removed old cord by compressing quick lock spring and pulling out wires. Removed boot from old cord. Stripped and soldered ends of new cord and slipped boot over cord. Inserted new cord wires into quick release spring, keeping polarity the same. Fit new rubber boot over switch. Reinstalled switch, cord and cord boot into drill and reassembled rear housing. Reinserted and tightened Phillips screws. Done.
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switch went bad
Roger - July 3, 2019
Tool Type
Demolition Hammer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Repair went simply with no problems. Removed a few screws installed parts screwed back together and it works as it should.
I got this tool at a pawn shop used a few years ago for 30 dollars it was a Makita scraper new about 400.00. Best 30 bucks ever spent once construction friends found out I had this everyone wanted to use it so when it stopped working no one offered to help replace it. Long story short I got my tool back fixed it and they all think its history.
I got this tool at a pawn shop used a few years ago for 30 dollars it was a Makita scraper new about 400.00. Best 30 bucks ever spent once construction friends found out I had this everyone wanted to use it so when it stopped working no one offered to help replace it. Long story short I got my tool back fixed it and they all think its history.
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Wore out switch
Nick - May 20, 2018
Tool Type
Jig saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
Remove switch cover remove switch and pull off wiring from switch 2 blue and 1 black 1 white and put in new switch and connect switch with wiring just the way you took it off.
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When replacing power cord, discovered a new switch was needed.
Daniel - September 11, 2016
Tool Type
Saw
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver
Parts Used
1. Removed side cover
2. Replaced power cord
3. Inserted wires from cord into switch
4. Inserted wires from motor into switch
5. Secured wires and cord
6. Secured cover.
Worked great!
2. Replaced power cord
3. Inserted wires from cord into switch
4. Inserted wires from motor into switch
5. Secured wires and cord
6. Secured cover.
Worked great!
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Broken shoe at base, torn cover on trigger button and missing hex wrench, and the wrench holder
Robert - February 26, 2016
Tool Type
Reciprocating Saw
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Hex wrench
Lay tool flat on work bench and slowly remove screws from body, then separate the handle area to access the trigger button an replace cover. Remove screw and washer holding the broken shoe on. Then install the new foot with the screw and washer.
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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.
