---
product_id: 670633
title: "Greenworks 10 Amp 18-Inch Corded String Trimmer (Attachment Capable), 21142"
brand: "greenworks"
price: "€ 168.36"
currency: EUR
in_stock: false
reviews_count: 13
url: https://www.desertcart.it/products/670633-greenworks-10-amp-18-inch-corded-string-trimmer-attachment-capable
store_origin: IT
region: Italy
---

# 10 Amp Power 18" Cutting Width Quick-Connect Attachments Greenworks 10 Amp 18-Inch Corded String Trimmer (Attachment Capable), 21142

**Brand:** greenworks
**Price:** € 168.36
**Availability:** ❌ Out of Stock

## Summary

> 🌿 Trim Like a Pro, Feel Like a Boss!

## Quick Answers

- **What is this?** Greenworks 10 Amp 18-Inch Corded String Trimmer (Attachment Capable), 21142 by greenworks
- **How much does it cost?** € 168.36 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/670633-greenworks-10-amp-18-inch-corded-string-trimmer-attachment-capable)

## Best For

- greenworks enthusiasts

## Why This Product

- Trusted greenworks brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Speedy Trimming:** Large 18" cutting path accelerates your trimming tasks, saving you time and effort.
- • **Comfort in Control:** Cushioned over-mold grip and auxiliary handle ensure maximum comfort and control.
- • **Effortless Operation:** Lightweight design with electric start and cord lock feature for hassle-free use.
- • **Power Meets Precision:** Experience the 10 Amp motor that delivers robust performance for all your trimming needs.
- • **Versatile Compatibility:** Quick-connect coupler allows seamless attachment changes, compatible with various brands.

## Overview

The Greenworks 10 Amp 18-Inch Corded String Trimmer is designed for efficiency and comfort, featuring a powerful 10 Amp motor, a generous 18-inch cutting path, and a lightweight design for easy maneuverability. Its quick-connect coupler allows for versatile attachment options, making it compatible with various brands, while the cushioned grip ensures a comfortable trimming experience.

## Description

10-Amp, 18-inch, Straight Shaft Split Boom Electric String Trimmer which accepts most attachments sold on and elsewhere. Bump feed cutting head with 0.80 line.

Review: The Beast. - I wrote this long review because I really like this trimmer or I wound not waste my time, even though at 75 I have plenty of it. First of all this trimmer is heavy, it don't feel heavy holding it but using it as a tool it is a different matter. Having the motor at the top gives this tool pretty good balance and keeps the motor out of the dirt for long life unlike the cheaper trimmers. Seeing this tool in person you can see real quick that it is well built. Time will tell about the quality of the bearings and gears at the trimmer head. Since it has is a split shaft, if the trimmer end does fail, at least that accessory can be swapped out and motor end still kept and used with the new accessory. Lots of warnings in the owners manual to keep the American Feds happy but little else. It shows the string head disassembled but not how to do it. Here is how for the first time user. Looking at the bottom where the bump feed button is there are 10 slots in a circle--4 slots and then a wider slot, then 4 more slots and a wider slot. The two wide slots are opposite of each other and contain the release tabs. Pry each with a knife or a small common screw driver as you pull the two halves apart exposing the string compartment. I used the trimmer twice now, the motor is very powerful, maybe to powerful for small yard jobs. I "didn't" find that the original head wasted string at all, only bumped a few times for front yard which is going around shrubs and trees and then doing flower bed edging work at an angle. If you hold the trimmer at the proper angle the debris won't fly back at you as so many people worried about. After a very uncomfortable usage of this fine tool the first time I realized something had to change. Since the switch combination was not designed properly for easy usage like on my B&D hedge trimmer where the power switch keeps the lock out switch engaged until the power switch is released. I dealt with the lock out switch on top of the handle by defeating it with a Tye Wrap strap which then holds the switch permanently down--a 30 second fix. The trigger switch for power is rather hard to keep pulled, perhaps intentionally but I believe to much so for a long working day. Activating the trigger makes a sound like a micro-switch is being activated under the plastic trigger. That will be an interesting fix for another day. At least the trimmer is now usable for me. I dealt with far more dangerous things then this little trimmer for those appalled at defeating a safety device. That said I would not defeat any safety for a chain saw or hedge trimmer. I am using my emergency generator 15 amp service extension cords for this trimmer because it pulls some serious amps. Just because it seems to operate normal with a regular 16 gauge extension cord, especially a 100 foot one, it is not! Think of it like using a 16 gauge extension cord for a window air conditioner--you don't do that either. Since using the trimmer the first time I have purchased and installed the Echo Speed-Feed 400 string head. It is a direct replacement with no adapters needed. The 400 and the string inside seem very good after using it today. To sum up, this trimmer is a heavy duty tool that can wear you out if not physically fit. It wore me out but I still like it and recommend it
Review: excellent if use 3rd party trimmer head - This trimmer does have very serious issues, as reported by the negative reviews. The problem is that all the electric trimmers are quite poor, according to the reviews. The greenworks does have plenty of power, which makes it well worth the price by itself. The main issue is the trimmer head which does not release line and it very frequently sucks the line back through the hole so you have to restring. You have to pull both ends of line while pushing the center bumphead button and it will take many attempts for each successful release of line. I became very skilled at restringing, even with poor instructions, but it is still inconvenient to spend 90% of your time restringing or struggling to pull out some line so you can do a little more trimming. I followed one reviewer's advice to have Greenworks send out a replacement trimmer head. It seemed to be a little better but still awful. My old Ryobi bumpfeed, which finally wore out, had the same problem but nowhere near as bad. This is a one star trimmer, basically unusable without modification. I saw two 3rd party trimmer heads being used with this greenworks in the greenworks reviews or trimmer head reviews. I tried the pivotrim pro, since one guy said he couldn't get the tanaka 32308 to fit (it may be more difficult even after you remove the shaft extension). This trimmer becomes five stars with the commercial trimmer head. It has plenty of power for any 3rd party trimmer heads, which are usually only used on gas trimmers. I only used two looped lines on the pivotrim, which seemed to be plenty, instead of all four. It cuts close to the ground, too. It is industrial power and more dangerous as some reviewers have mentioned. You should have goggles (a face shield would be better), long pants, shirt, covered shoes, and hearing protection. Cover your glass doors and windows, too, if you have small rocks or gravel in your yard. It rips through dirt and rocks and will shatter glass. It cuts through bunch grass with little problem, though the pivotrim will break line right at the loop sometimes when it gets really tough. It is also a little harder to handle because of the power. If, like me, you do have a problem with the greenworks trimmer head, try a 3rd party trimmer head on the greenworks trimmer. If your current trimmer just has a worn out trimmer head you might be able to just replace it without buying a whole new trimmer. You can always buy the greenworks trimmer later or the 3rd party trimmer head later if either doesn't fit or work. Greenworks does not recommend that you use a 3rd party trimmer head. They also say you should not use size 95 line, even though it says 80 or 95 right on the original trimmer head. I think it will actually take 65 line, too, if that's all you have. Use the pivotrim method 4: 1. remove the spool 2. rotate the shaft and cylinder until the cylinder hole lines up with the hole in the nonrotating core inside 3. put a screwdriver or metal rod through the hole to lock the shaft extension 4. turn the shaft extension nut clockwise with a socket wrench or regular wrench (it should come off fairly easily) 5. one of the included pivotrim nuts threads easily onto the threaded base shaft You'll want to get the thickest, 105, and highest quality line that still fits for the pivotrim. The orange precut hex line breaks at the loop almost instantly because it is too cheap. My 105 round line barely fit through the loop holes so 105 hex edge line may or may not fit. The greenworks does have other issues I can live with. The trigger is very hard to keep pressed, as mentioned by others, and you have to keep it pressed all the way down. I put one finger over another finger but I still have to rest my finger after a few minutes. The trimmer itself is heavy but not enough to be a real problem. This could be a serious drawback for someone of below average size and strength, though. The main trimmer shaft did pop out on me once, but was fine after putting it back in the hole again. The cord retainer only works on very small gauge extension cords. It is functional if you push the looped cord through the front and loop it back around, but you are much better off just tying the connection with an overhand knot the same as securing two extension cords together. This is probably the only viable electric trimmer. I highly recommend it when used with an upgrade trimmer head. 12 Jan 2016 Update: When my pivotrim pro broke down to almost nothing left I replaced it with a Tanaka 32308 trimmer head. It installs easy enough, especially if you are just switching between a pivotrim and a Tanaka, but the Tanaka with two string ends doesn't have near the power of the pivotrim with two double string ends, which you will need for tall tough grass. You can bypass the hard to press button problem with a velcro strap. I bought the 8 inch velcro cable ties from Swiss Precision to cinch down the button below and trigger on top before use. It's a little bit of a pain but a lot less pain than resting your fingers between runs.

## Features

- 10Amp motor with straight shaft and .080 dual line bump feed
- Light weight and simple electric start with cord lock feature makes it easy to use
- Large 18" cutting path helps speed up the trimming process
- Cushion and over-mold grip and handle for operator comfort with auxiliary handle for more control when trimming. Compatible GreenWorks Replacement Spool, Model 29622
- Quick-connect coupler allows for easy attachment changes and fits various name brands

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008BY6ZEC |
| Best Sellers Rank | #451,804 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,275 in String Trimmers |
| Brand | Greenworks |
| Brand Name | Greenworks |
| Color | Grey & Green |
| Customer Reviews | 4.3 out of 5 stars 3,988 Reviews |
| Cutting Width | 1800 Inches |
| Cutting width | 1800 Inches |
| Global Trade Identification Number | 00841821008468 |
| Included Components | 0Amp Motor With Straight Shaft, Attachment Capable, Dual Line Bump Feed, Gas Attachment Capable, Greenworks 21142 10Amp 18-Inch Corded String Trimmer, Replacement Spool |
| Is Product Cordless | No |
| Item Dimensions L x W | 31.5"L x 12.99"W |
| Item Type Name | Replacement Spool |
| Item Weight | 9.9 Pounds |
| Manufacturer | Sunrise Global Marketing, LLC |
| Manufacturer Part Number | 21142 |
| Manufacturer Warranty Description | 4 years |
| Model Number | 21142 |
| Number of Items | 1 |
| Pattern | Trimmer |
| Power Source | Corded Electric |
| Product Dimensions | 31.5"L x 12.99"W |
| Recommended Uses For Product | Lawn maintenance, trimming |
| Required Assembly | Yes |
| Size | 18" Corded |
| Speed | 8000 RPM |
| Style Name | Corded |
| UPC | 841821008468 |

## Product Details

- **Brand:** Greenworks
- **Color:** Grey & Green
- **Cutting Width:** 1800 Inches
- **Item Weight:** 9.9 Pounds
- **Power Source:** Corded Electric

## Images

![Greenworks 10 Amp 18-Inch Corded String Trimmer (Attachment Capable), 21142 - Image 1](https://m.media-amazon.com/images/I/61Aex20w7UL.jpg)
![Greenworks 10 Amp 18-Inch Corded String Trimmer (Attachment Capable), 21142 - Image 2](https://m.media-amazon.com/images/I/81EArgtGr2L.jpg)
![Greenworks 10 Amp 18-Inch Corded String Trimmer (Attachment Capable), 21142 - Image 3](https://m.media-amazon.com/images/I/81RGKHhDDeL.jpg)
![Greenworks 10 Amp 18-Inch Corded String Trimmer (Attachment Capable), 21142 - Image 4](https://m.media-amazon.com/images/I/910bTWpYkVL.jpg)
![Greenworks 10 Amp 18-Inch Corded String Trimmer (Attachment Capable), 21142 - Image 5](https://m.media-amazon.com/images/I/914o28h2V+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ The Beast.
*by J***B on August 11, 2016*

I wrote this long review because I really like this trimmer or I wound not waste my time, even though at 75 I have plenty of it. First of all this trimmer is heavy, it don't feel heavy holding it but using it as a tool it is a different matter. Having the motor at the top gives this tool pretty good balance and keeps the motor out of the dirt for long life unlike the cheaper trimmers. Seeing this tool in person you can see real quick that it is well built. Time will tell about the quality of the bearings and gears at the trimmer head. Since it has is a split shaft, if the trimmer end does fail, at least that accessory can be swapped out and motor end still kept and used with the new accessory. Lots of warnings in the owners manual to keep the American Feds happy but little else. It shows the string head disassembled but not how to do it. Here is how for the first time user. Looking at the bottom where the bump feed button is there are 10 slots in a circle--4 slots and then a wider slot, then 4 more slots and a wider slot. The two wide slots are opposite of each other and contain the release tabs. Pry each with a knife or a small common screw driver as you pull the two halves apart exposing the string compartment. I used the trimmer twice now, the motor is very powerful, maybe to powerful for small yard jobs. I "didn't" find that the original head wasted string at all, only bumped a few times for front yard which is going around shrubs and trees and then doing flower bed edging work at an angle. If you hold the trimmer at the proper angle the debris won't fly back at you as so many people worried about. After a very uncomfortable usage of this fine tool the first time I realized something had to change. Since the switch combination was not designed properly for easy usage like on my B&D hedge trimmer where the power switch keeps the lock out switch engaged until the power switch is released. I dealt with the lock out switch on top of the handle by defeating it with a Tye Wrap strap which then holds the switch permanently down--a 30 second fix. The trigger switch for power is rather hard to keep pulled, perhaps intentionally but I believe to much so for a long working day. Activating the trigger makes a sound like a micro-switch is being activated under the plastic trigger. That will be an interesting fix for another day. At least the trimmer is now usable for me. I dealt with far more dangerous things then this little trimmer for those appalled at defeating a safety device. That said I would not defeat any safety for a chain saw or hedge trimmer. I am using my emergency generator 15 amp service extension cords for this trimmer because it pulls some serious amps. Just because it seems to operate normal with a regular 16 gauge extension cord, especially a 100 foot one, it is not! Think of it like using a 16 gauge extension cord for a window air conditioner--you don't do that either. Since using the trimmer the first time I have purchased and installed the Echo Speed-Feed 400 string head. It is a direct replacement with no adapters needed. The 400 and the string inside seem very good after using it today. To sum up, this trimmer is a heavy duty tool that can wear you out if not physically fit. It wore me out but I still like it and recommend it

### ⭐⭐⭐⭐⭐ excellent if use 3rd party trimmer head
*by L***E on January 2, 2014*

This trimmer does have very serious issues, as reported by the negative reviews. The problem is that all the electric trimmers are quite poor, according to the reviews. The greenworks does have plenty of power, which makes it well worth the price by itself. The main issue is the trimmer head which does not release line and it very frequently sucks the line back through the hole so you have to restring. You have to pull both ends of line while pushing the center bumphead button and it will take many attempts for each successful release of line. I became very skilled at restringing, even with poor instructions, but it is still inconvenient to spend 90% of your time restringing or struggling to pull out some line so you can do a little more trimming. I followed one reviewer's advice to have Greenworks send out a replacement trimmer head. It seemed to be a little better but still awful. My old Ryobi bumpfeed, which finally wore out, had the same problem but nowhere near as bad. This is a one star trimmer, basically unusable without modification. I saw two 3rd party trimmer heads being used with this greenworks in the greenworks reviews or trimmer head reviews. I tried the pivotrim pro, since one guy said he couldn't get the tanaka 32308 to fit (it may be more difficult even after you remove the shaft extension). This trimmer becomes five stars with the commercial trimmer head. It has plenty of power for any 3rd party trimmer heads, which are usually only used on gas trimmers. I only used two looped lines on the pivotrim, which seemed to be plenty, instead of all four. It cuts close to the ground, too. It is industrial power and more dangerous as some reviewers have mentioned. You should have goggles (a face shield would be better), long pants, shirt, covered shoes, and hearing protection. Cover your glass doors and windows, too, if you have small rocks or gravel in your yard. It rips through dirt and rocks and will shatter glass. It cuts through bunch grass with little problem, though the pivotrim will break line right at the loop sometimes when it gets really tough. It is also a little harder to handle because of the power. If, like me, you do have a problem with the greenworks trimmer head, try a 3rd party trimmer head on the greenworks trimmer. If your current trimmer just has a worn out trimmer head you might be able to just replace it without buying a whole new trimmer. You can always buy the greenworks trimmer later or the 3rd party trimmer head later if either doesn't fit or work. Greenworks does not recommend that you use a 3rd party trimmer head. They also say you should not use size 95 line, even though it says 80 or 95 right on the original trimmer head. I think it will actually take 65 line, too, if that's all you have. Use the pivotrim method 4: 1. remove the spool 2. rotate the shaft and cylinder until the cylinder hole lines up with the hole in the nonrotating core inside 3. put a screwdriver or metal rod through the hole to lock the shaft extension 4. turn the shaft extension nut clockwise with a socket wrench or regular wrench (it should come off fairly easily) 5. one of the included pivotrim nuts threads easily onto the threaded base shaft You'll want to get the thickest, 105, and highest quality line that still fits for the pivotrim. The orange precut hex line breaks at the loop almost instantly because it is too cheap. My 105 round line barely fit through the loop holes so 105 hex edge line may or may not fit. The greenworks does have other issues I can live with. The trigger is very hard to keep pressed, as mentioned by others, and you have to keep it pressed all the way down. I put one finger over another finger but I still have to rest my finger after a few minutes. The trimmer itself is heavy but not enough to be a real problem. This could be a serious drawback for someone of below average size and strength, though. The main trimmer shaft did pop out on me once, but was fine after putting it back in the hole again. The cord retainer only works on very small gauge extension cords. It is functional if you push the looped cord through the front and loop it back around, but you are much better off just tying the connection with an overhand knot the same as securing two extension cords together. This is probably the only viable electric trimmer. I highly recommend it when used with an upgrade trimmer head. 12 Jan 2016 Update: When my pivotrim pro broke down to almost nothing left I replaced it with a Tanaka 32308 trimmer head. It installs easy enough, especially if you are just switching between a pivotrim and a Tanaka, but the Tanaka with two string ends doesn't have near the power of the pivotrim with two double string ends, which you will need for tall tough grass. You can bypass the hard to press button problem with a velcro strap. I bought the 8 inch velcro cable ties from Swiss Precision to cinch down the button below and trigger on top before use. It's a little bit of a pain but a lot less pain than resting your fingers between runs.

### ⭐⭐⭐⭐ Powerful, Fast Trimmer but not for everyone
*by U***T on March 3, 2026*

This is a good, very powerful trimmer. I love the power, shape, balance, and build quality, but there are some issues. 1. The safety trigger is very awkward. I know this is required by law, but the way it is implemented makes it very difficult to use especially when you are using the trimmer upside down to trim on the edge of a sidewalk. It would make my hand very tired. I believe in altering my tools to work for me the way I want so I solved this problem by disabling the safety switch so that now you just need to pull the trigger. This adjustment wasn't difficult but is not for everyone. 2. The trimming head is fairly painful to load with trimmer line and the feeding system is flawed. I updated the head with a professional universal echo speed feed head and it had vastly improved the head. 3. The trimmer is quite heavy and very powerful. This means it will not work as well for smaller individuals. The trimmer comes with a shoulder strap, but it was awkward to use especially while flipping the trimmer upside down for edging. For this reason, I removed the strap from the beginning. 4. Trimmer line breaks easily on this machine due to the speed and power. Purchase good quality line as thick as your trimmer head can support and you will have a better experience. 5. It is corded, which many will not like. The cord doesn't bother me though because it is so powerful and never runs out of power. I have tried multiple battery powered trimmers and none have matched this trimmers power and they won't finish my entire yard without charging. I know this sounds like there are many negatives, but this is outright, one of the most powerful electric trimmers you can buy and it is reasonably affordable. After the alterations I made, I love this trimmer and I am able to complete my yard quickly and professionally.

## Frequently Bought Together

- Greenworks 10 Amp 18-Inch Corded String Trimmer (Attachment Capable), 21142
- Oregon 21-380 Gatorline 1-Pound Round String Trimmer Line, .080-inches x 413-feet – Fits Most Weed Whacker Types
- Greenworks 0.080" Dual Line Bump Feed Replacement String Trimmer Line Spool ( Compatible With Trimmer Model # 21161, 21025, 21387)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-06-16*