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  • Ryobi OEM 313318001 replacement string trimmer trimmer head assembly RY15523A
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Ryobi OEM 313318001 replacement string trimmer trimmer head assembly RY15523A

4.4 out of 5 stars 1,704 ratings
鶹's Choice highlights highly rated, well-priced products available to ship immediately.
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Purchase options and add-ons

  • Genuine, OEM Ryobi Replacement Part
  • Ryobi replacement trimmer head assembly, part number 313318001
  • Compatible with: P2009, RY15523A, RY15523AVNM
› See more product details

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Product information

Technical Details

Brand ‎ZAITOE
Model Number ‎313318001
Colour ‎Multicolor
Product Dimensions ‎10.16 x 10.16 x 7.62 cm; 254.01 g
Material ‎Plastic
Item Weight ‎254 g

Additional Information

ASIN B08TGCV2W7
Customer Reviews
4.4 out of 5 stars 1,704 ratings

4.4 out of 5 stars
鶹 Rank
Date First Available Nov. 8 2021
Manufacturer Ryobi

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Ryobi OEM 313318001 replacement string trimmer trimmer head assembly RY15523A

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Product description

Replacement for Ryobi OEM part# 313318001. Compatible with: P2009, RY15523A, RY15523AVNM

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Customer reviews

4.4 out of 5 stars
1,704 global ratings

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Customers say

Customers like the build quality, ease of use, and functionality of the product. They mention it's well-made, loads easier, and works great. However, some customers have reported that it doesn't fit their Ryobi Expand-it system straight shaft trimmer head.

Select to learn more

Build qualityEase of useFunctionalityFit
4 customers mention "Build quality"4 positive0 negative

Customers are satisfied with the build quality of the product. They mention it's well-made and an excellent product.

"Seems well made and was easy to install (no extra hardware provided so it must fit your model, it’s not a universal fit)...." Read more

"Exactly the same as the original. Well made. Delivered on time as promised." Read more

"Product looks good, feels good, robust but does not fit" Read more

4 customers mention "Ease of use"4 positive0 negative

Customers find the product easy to use. They mention it's compact, easy to install, and loads easier.

"Seems well made and was easy to install (no extra hardware provided so it must fit your model, it’s not a universal fit)...." Read more

"I actually like this replacement better than my original one. It loads easier, winds easier, and comes apart to reload MUCH easier...." Read more

3 customers mention "Functionality"3 positive0 negative

Customers are satisfied with the functionality of the product. They mention it works great on a TroyBilt expandit Trimmer.

"...It's a 40V Expand-It type with carbon fiber stem. It works well but the original trimmer head was a real pain to open and load...." Read more

"...I replaced mine and it works great!..." Read more

"Works great on a TroyBilt expandit Trimmer..." Read more

14 customers mention "Fit"4 positive10 negative

Customers are dissatisfied with the fit of the product. They mention it doesn't fit the Ryobi Expand-it system straight shaft trimmer head. Some say the screw is the wrong size and it requires a much larger threaded bolt than the one on their Ryobi P2009 or 40V 402011 trimmers.

"Does not fit Ryobi Expand-it system straight shaft trimmer head. Bought it too long ago to return." Read more

"...’s rated 10,000rpm all the pieces look identical except it would not thread on my trimmer...." Read more

"It Fits!..." Read more

"...(no extra hardware provided so it must fit your model, it’s not a universal fit)...." Read more

May need to modify for Homelite curved shaft
5 out of 5 stars
May need to modify for Homelite curved shaft
This is virtually identical to the original Homelite head, it’s rated 10,000rpm all the pieces look identical except it would not thread on my trimmer. After running a m8x 1.25 tap through the nut, the trimmer head threaded on without issue and works as it should. As for the durability only time will tell but my old one wore out after one season of bump feeding it trimming 1/2 acre gravel driveway. I would still recommend as it is an ryobi brand so you can’t fault them. I just wanted to skip the hassle of contacting Homelite and all the fuss to get a simple replacement part As for the other reviews that say it fits Homelite brand not sure what to say mine did not. I guess u could always return it if it doesn’t work out
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Top reviews from Canada

  • John
    5.0 out of 5 stars Works better than the original Ryobi head
    Reviewed in Canada on August 23, 2024
    Verified Purchase
    I got my RY15526VNM trimmer a few years back. It's a 40V Expand-It type with carbon fiber stem. It works well but the original trimmer head was a real pain to open and load. It was a bayonet mount type which required herculean hands to grasp and twist and the filament had the bad habit of breaking on the inside which forced me to open it often. I was almost glad when it broke.

    I wasn't sure this one would fit but it did and not only that but it works really well. Much easier to open than the original, easier to load new line. Easier to feed and somehow the line doesn't break as often. I'm very satisfied so I totally recommend it.
    2 people found this helpful
    Helpful
     Report
  • 鶹 Customer
    5.0 out of 5 stars It Fits!
    Reviewed in Canada on September 29, 2023
    Verified Purchase
    The Ryobi website is useless!
    I had to get a video off of YouTube that had a very similar head replacement and I was able to figure it out through that video.
    I replaced mine and it works great!
    Home Depot is supposed to carry the product but it is sold out in Canada.
    You can’t get it on the Internet or in any Home Depot store.
    And the price was a little over half of what you pay at Home Depot!
    Definitely recommend this product!
    2 people found this helpful
    Helpful
     Report
  • NS
    5.0 out of 5 stars May need to modify for Homelite curved shaft
    Reviewed in Canada on July 26, 2022
    Verified Purchase
    This is virtually identical to the original Homelite head, it’s rated 10,000rpm all the pieces look identical except it would not thread on my trimmer. After running a m8x 1.25 tap through the nut, the trimmer head threaded on without issue and works as it should. As for the durability only time will tell but my old one wore out after one season of bump feeding it trimming 1/2 acre gravel driveway.
    I would still recommend as it is an ryobi brand so you can’t fault them. I just wanted to skip the hassle of contacting Homelite and all the fuss to get a simple replacement part
    As for the other reviews that say it fits Homelite brand not sure what to say mine did not. I guess u could always return it if it doesn’t work out
    Customer image
    NS
    5.0 out of 5 stars
    May need to modify for Homelite curved shaft

    Reviewed in Canada on July 26, 2022
    This is virtually identical to the original Homelite head, it’s rated 10,000rpm all the pieces look identical except it would not thread on my trimmer. After running a m8x 1.25 tap through the nut, the trimmer head threaded on without issue and works as it should. As for the durability only time will tell but my old one wore out after one season of bump feeding it trimming 1/2 acre gravel driveway.
    I would still recommend as it is an ryobi brand so you can’t fault them. I just wanted to skip the hassle of contacting Homelite and all the fuss to get a simple replacement part
    As for the other reviews that say it fits Homelite brand not sure what to say mine did not. I guess u could always return it if it doesn’t work out
    Images in this review
    Customer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer image
    One person found this helpful
    Helpful
     Report
  • GT YUL
    4.0 out of 5 stars Works great on a TroyBilt expandit Trimmer
    Reviewed in Canada on August 7, 2024
    Verified Purchase
    Seems well made and was easy to install (no extra hardware provided so it must fit your model, it’s not a universal fit). Fit my older model Troy bilt expandit trimmer attachment ( old model maybe 10-15 years old), my new Troy bilt models use a different diameter Echo speed400 universal worked newer model). What I am not sure of is how long it will last the plastic always wears out on the bump heads ( they all do) more a question of how quickly. At this price, get a back up.
    Helpful
     Report
  • Gary
    5.0 out of 5 stars Exactly what I ordered
    Reviewed in Canada on July 28, 2024
    Verified Purchase
    Exactly the same as the original. Well made. Delivered on time as promised.
    Helpful
     Report
  • shane christensen
    1.0 out of 5 stars Not OEM & Not compatible with P2009
    Reviewed in Canada on August 30, 2024
    Verified Purchase
    Here's what ad said:
    Genuine, OEM Ryobi Replacement Part
    Ryobi replacement trimmer head assembly, part number 313318001
    Compatible with: P2009, RY15523A, RY15523AVNM

    Here's what I got:
    A head that feels very heavy and looks like it might be long-lasting.
    But it is NOT OEM and isn't even a very close copy. It requires a much larger threaded bolt than the one on my Ryobi P2009 or my Ryobi 40V 402011 trimmer.
    Why claim it's OEM when it's not? Back it goes!
    2 people found this helpful
    Helpful
     Report
  • Sheryl K.
    5.0 out of 5 stars Ryobi Weed Trimmer replacement head
    Reviewed in Canada on August 16, 2024
    Verified Purchase
    Was great, for perfect, was decent price, when on sale and was OEM
    One person found this helpful
    Helpful
     Report
  • ó
    5.0 out of 5 stars Supply for RYOBI
    Reviewed in Canada on August 28, 2024
    Verified Purchase
    Perfect match for my RYOBI trimmer
    Helpful
     Report

Top reviews from other countries

Translate all reviews to English
  • Cycling Through Life
    5.0 out of 5 stars Fits and works perfectly as a replacement head for the Ryobi 40V string trimmer
    Reviewed in the United States on May 25, 2025
    Verified Purchase
    I ordered this as a replacement for the original head on my Ryobi 40V string trimmer. I was concerned about the comments regarding the incompatible thread patterns. However, at least in the case of the 40V string trimmer, the thread pattern was correct and I was able to screw it in properly.

    The replacement unit appears to be good quality and I didn't have any problems with the lines breaking. I was able to use it and it worked perfectly. To those with the 40V string trimmer model, I highly recommend this replacement unit be considered when you are looking for a replacement unit.
    Report
  • ALFREDO MARQUEZ RAMIREZ
    5.0 out of 5 stars MUY BUEN MATERIAL
    Reviewed in Mexico on December 18, 2023
    Verified Purchase
    MUY BUEN MATERIAL FACIL COLOCACION
    Report
  • Zeke Lark
    5.0 out of 5 stars Works Great
    Reviewed in the United States on May 17, 2025
    Verified Purchase
    Works great for my Ryobi trimmer. I was able to just take the center piece out and replace my old center piece - no tools required. Good price, fast delivery and a match to what I needed - I'd recommend it.
    Report
  • Isaiah & Michele
    5.0 out of 5 stars Perfect Fit for RYOBI 40V with RY15523A – Sturdy, OEM Quality
    Reviewed in the United States on July 22, 2025
    Verified Purchase
    This replacement trimming head is exactly what I needed for my RYOBI 40V powerhead (model RY40002) paired with the RY15523A straight shaft extension. Unlike several other replacement heads that claim to fit the 8mm center bolt but actually come with 10mm female threads (a deeply frustrating mismatch), this one is the real deal folks! As you can see from the images, the threads match perfectly, and installation was quick and seamless. Took all of 8 min to load my filament and get it all installed. It’s been several years since I’ve had a working bump head that loads filament without disassembling the whole dang thing!!

    It’s a solid, heavy-duty part with OEM-grade sturdiness - no flimsy components here. It feels built to last, and it’s performing just as well (if not better) than the original. If you’re looking for a true 8mm-thread match for this particular 40V Ryobi (see my images) setup, don’t waste time or money on questionable listings - this is the one to get. Highly recommend.
    Customer image
    Isaiah & Michele
    5.0 out of 5 stars
    Perfect Fit for RYOBI 40V with RY15523A – Sturdy, OEM Quality

    Reviewed in the United States on July 22, 2025
    This replacement trimming head is exactly what I needed for my RYOBI 40V powerhead (model RY40002) paired with the RY15523A straight shaft extension. Unlike several other replacement heads that claim to fit the 8mm center bolt but actually come with 10mm female threads (a deeply frustrating mismatch), this one is the real deal folks! As you can see from the images, the threads match perfectly, and installation was quick and seamless. Took all of 8 min to load my filament and get it all installed. It’s been several years since I’ve had a working bump head that loads filament without disassembling the whole dang thing!!

    It’s a solid, heavy-duty part with OEM-grade sturdiness - no flimsy components here. It feels built to last, and it’s performing just as well (if not better) than the original. If you’re looking for a true 8mm-thread match for this particular 40V Ryobi (see my images) setup, don’t waste time or money on questionable listings - this is the one to get. Highly recommend.
    Images in this review
    Customer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer image
    Report
  • Gallico
    5.0 out of 5 stars Works like the OEM
    Reviewed in the United States on July 22, 2025
    Verified Purchase
    Easy replacement for the Rayobi head, takes a few minutes to install and works as good as the OEM
    Report

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