

⚡ Upgrade your trimmer game with Echo’s Speed Feed 400 — fast, flawless, and built to perform!
The Echo Speed Feed 400 Trimmer Head (Part #99944200907B) is a genuine OEM replacement designed exclusively for Echo SRM straight shaft trimmers. It features ultra-fast line loading in under a minute without disassembly, smooth and jam-free line feeding, and durable construction for heavy-duty yard work. Compatible with a wide range of SRM models, this bulk-packed replacement part ensures easy installation and reliable performance, making it a top choice for professionals and enthusiasts seeking efficiency and quality.
| ASIN | B07WNB5D96 |
| Best Sellers Rank | #7,776 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #4 in String Trimmer Replacement Parts |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,190) |
| Is Discontinued By Manufacturer | No |
| Item Weight | 10.5 ounces |
| Item model number | 99944200907S |
| Manufacturer | Echo |
| Product Dimensions | 5 x 3 x 5 inches |
G**.
Awesome replacement
This Echo genuine replacement part was exactly what we needed after ours broke. It fit perfectly, installed easily, and works just like the original. Quality is excellent, and it got our equipment back up and running quickly. Very happy with this purchase.
M**Y
Fast Line Loading and Smooth Operation
This genuine Speed Feed 400 head is a perfect fit for my SRM trimmer and works exactly as advertised. Installation was quick and easy, and it was ready to use in just a few minutes. The best feature is how fast and simple it is to load new trimmer line. I can reload in under a minute without having to take the head apart, which saves a lot of time during yard work. Once loaded, the line feeds smoothly and evenly with no jams or tangles. The build quality feels solid, and after multiple uses it still operates like new. It handles heavy grass and weeds with no problem and keeps the trimmer running efficiently. One thing to note is that it did not come with the adapter parts needed to fit other brands, so if you plan to use it with a non-SRM trimmer, you may need to buy additional hardware. For SRM trimmer owners, it is a great upgrade, but anyone using a different brand should check compatibility before purchasing.
M**E
For DeWalt
Fantastic head, I purchased this for my DeWalt 20V and it works much better now
R**.
Great replacement trimmer head.
Product was a perfect fit and it was a genuine factory replacement . Works great.
P**N
Echo SRM-210
Easily installed on my Echo SRM-210 and it is working just fine. However, as many have noted, it does not come with any instructions and no additional adaptor parts (although I did not need them). Mine did have the patent numbers imprinted on the plastic and has a brass thread insert contrary to what another reviewer stated. It came in a simple plastic bag rather than the real clamshell plastic so it does seem like someone is repackaging this.
H**I
Why did I wait so long??
Can’t believe I’ve been putting up with an 8-yr old head that stopped bumping years ago. I ordered this OEM part (Echo Speed Feed 400 replacement head) for my Echo SRM 225 string trimmer and it screwed in and I was trimming in under 5 minutes. And I’m not mechanically handy at all There are no instructions or adapters in this kit so when I opened the package—WHICH WAS DELIVERED THE SAME DAY I ORDERED IT— I had a twinge of regret for ordering it around midnight and being too lazy to go out to the garage to double check what specific Echo model I have. This is not one of the universal heads with a variety of adapters, this one is made by echo to fit echo trimmers. I got a little anxiety realizing that my trimmer needed to be one of the models this head fit, and there wouldn’t be any adjusting with adapters So I grabbed the replacement head and took it to the garage and immediately saw that I was in luck as the trimmer hanging vertically displayed the model # prominently: SRM 225 I watched 5 seconds of a YouTube video and saw that the original head should screw off. Probably should have watched 3 sec more because 1. First u need to insert a small screwdriver into a slot which rotates around the housing and then spin it until it catches…2. NOW the shaft is held still and the head can be screwed off in *counterclockwise fashion This took me about 3 min to figure out on my own and was the most difficult step. Of course the video went over this if I had just hung in there for a bit longer Once the old head was off I realized that the shaft and drive gear thingy and all parts of the housing had hundreds of threads of the black plastic landscaping fabric that I put under my mulch to keep weeds from growing root networks I knew those strings of plastic often wrapped around the head while trimming but I thought I was stripping them off each time. Nope, I was just removing only the most obvious threads that hung outside the head. The inside was packed tightly with chaotic spools of them. Those threads undoubtedly contributedt to the breakdown and warping of the original head and probably were causing the string windings to get crammed and stick together preventing the ends from being lengthened unless i took the head cap all the way off and unwound them Pulling them out took a minute or two, and I cursed my laziness again and then screwed on the new head, depressed the bumper and released some string and fired that hot beyatch up and it was really just that easy! Echo made a great trimmer in the SRM 225 and I’m quite used to the length, balance, and head angle on the shaft so hopefully the motor will last another few years. With trimmers like these selling for well over $200 the authentic Echo Speed Feed 400 is a tremendous value proposition. It’s $10 more expensive than the universal replacements made by other brands but the shipping time was crazy fast and it was a breeze to install. I would recommend it unreservedly
S**S
***Good Product w/caveat***
This is a great product, but found out after it was shipped that the selller informed me that it would not fit my Troy-Bilt TB2044XP :( so I had to return the item unopened. Find out first if it will adapt to your brand 1st but I will say that all I've heard from reliable sources is these things beat the band. Wish they'da worked for me and yes I would recommend if all criteria is met.
C**Y
Exactly what I excepted
Fit great worked great not a problem with either of the heads because I bought 2 and both have worked flawlessly in fence roll after fence roll. I really hard on weed eater heads
A**H
So quick and easy to load cord. Awsome whipper snipper head!!
K**Y
OEM. Works as it should. . Installs easily.
P**E
I bought this as the product was said to fit all SRM models. However the screw thread is much bigger than the thread on my Echo SRM 345SL so it is completely useless to me.
F**O
Excelente calidad del material y la facilidad para cambiar el hilo
L**O
It does the job that it is supposed to do. But only for an Echo weed trimmer. The equivalent store bought unit is identical to this unit, and it includes adapters for other trimmer manufacturers at a higher price. Since I only needed it for my Echo trimmer, I purchased it at a discount price compared to the packaged store version with adapters. Do your homework before buying such a unit and make sure you know if you need adapters before you purchase any like item, sight unseen. I would buy from this seller again. Thanks.
Trustpilot
2 months ago
1 month ago