Easy
Less than 15 minutes
This is a genuine OEM sourced part used on the DeWalt DCST990M1 (Type 1) 40V 15" String Trimmer. The plastic and metal replacement spool is fastened to the gearcase assembly at the base of the trimmer. This item houses and dispenses the cutting line for trimming grass. A screwdriver is needed for the installation, and the replacement spool is sold individually.
Replacement Spool 90599025
OEM part for: DeWALT
Part Number: 90599025
$29.61
In Stock
Order within the next 4 hours and your part ships today! 
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Frequently Purchased Together ?
Compatibility
This part will fit the following 18 machines
DeWALT
DCST990M1 (Type 1) 40V 15" String Trimmer View Diagrams & Manuals
DCST920P1 (Type 1) 20v Brushle Str Trm View Diagrams & Manuals
DCST920P1 (Type 2) 20v Brushle Str Trm View Diagrams & Manuals
DCST920B (Type 2) 20v String Trim Bare View Diagrams & Manuals
DCST920B (Type 3) 20v String Trim Bare View Diagrams & Manuals
DCST970X1 (Type 1) 60v String Trimmer View Diagrams & Manuals
DCST990B (Type 1) 40v Str.Trimmer View Diagrams & Manuals
DCST990B (Type 2) 40v Str.Trimmer View Diagrams & Manuals
DCST990H1 (Type 1) 40v Xr String Trimr View Diagrams & Manuals
DCST990H1 (Type 2) 40v Xr String Trimr View Diagrams & Manuals
DCST990X1 (Type 2) 40v Strin Trim 7.5ah View Diagrams & Manuals
DCST920P1 (Type 3) 20v Max Lithium String Trimmer View Diagrams & Manuals
DCST925B (Type 1) 20v Brushed String Trimmer View Diagrams & Manuals
DCST925B (Type 2) 20v Brushed String Trimmer View Diagrams & Manuals
DCST970B (Type 1) Dw 60v String Trimmer Bare View Diagrams & Manuals
DCST990M1 (Type 2) 40v Str Trim 4.0ah Power Tool View Diagrams & Manuals
DCST925M1 (Type 1) 20v Brshd Strg Trimr Power Tool View Diagrams & Manuals
DCST925M1 (Type 2) 20v Brshd Strg Trimr Power Tool View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Trimmer Parts
Customer Part Reviews ?
Average Rating (out of 5):
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All's well here
Tom is a great phone rep . Part went right on and is working perfectly .
Regards , Craig
Guest -
25 days ago
Verified Purchase
Easy repair
Good condition easy fix
Guest -
July 13, 2020
Verified Purchase
Awesome 😎 Another home run for E Replacement Parts!
I thought I was only getting the housing for my trimmer string. But nooooo you sent me the whole assembly and filled it with string to boot! Another great reason for why I only buy from E Replacement Parts!
Tony -
June 18, 2020
Verified Purchase
The replacement spool for our Dewalt Lawn Trimmer:
The replacement spool arrived on time, was in new condition, and has been successfully installed on the trimmer. Works great.
Guest -
October 12, 2019
Verified Purchase
Part
The part arrived and it fits our trimmer! Thanks to your customer service rep
for her help.
Guest -
October 1, 2019
Verified Purchase
Perfect fit
The replacement head for the weed eater was designed totally different, but in a better design. The old one wore through and broke before it even had 2 hours of time on it. The new one you send has an extra knob sticking down which allows for the bump feed to not wear out the spool.
Very happy with the product.
Guest -
September 3, 2019
Verified Purchase
Replacement Part
Ordering was easy and part came in a timely manner, would use replacement parts. Com again without a doubt
Guest -
August 19, 2019
Verified Purchase
Not much string on the spool
Wasn’t impressed bc there wasn’t a lot of string on the spool
Guest -
May 26, 2020
Verified Purchase
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t days ago
Verified Purchase
eReplacementParts Team
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Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
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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 Replacement Spool
I would like to know if this will work for my DeWALT DCST990 40V MAX Brushless Trimmer?
William
for model number DCST990
asked on 2023-03-02
Hello William, Thank you for contacting us. We have researched the model you have provided and have found the part you are looking for is Part Number:90599025. We hope this helps, good luck with the repair!
eReplacementParts Team March 02, 2023
Does a Quickload replacement head #DWO1DT995 fit on a DCST925 trimmer?
Marcia
for model number DCST925
asked on 2022-09-14
Hello Marcia, Thank you for the question. Very sorry, the DWO1DT995 is not showing to be a valid number. We have researched the model you have provided and have found the part you are looking for is Part Number:90599025. DeWALT does not list any other compatible heads. We hope this helps, good luck with this repair!
eReplacementParts Team September 14, 2022
Does this part come complete such as with the spring. Also, there is a white cylinder that goes with the spring as well? Please advise
Joseph
for model number DCST920 Type 1
asked on 2022-06-16
Hello Joseph, thank you for your inquiry. There is a small white round part called Spindle Lock Plate 90607066 which is sold separately. This is complete with spring inside. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you.
eReplacementParts Team June 16, 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.
Would advance the nylon string
Charles - October 6, 2023
👍 1 of 1 people found this instruction helpful
Tool Type
Grass Trimmer
Difficulty
Medium
Time
Less than 15 minutes
Tools Used
, none
Parts Used
Unscrew the spool which has a left hand thread and threaded the replacement spool on the grass trimmer.
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Trimmer spool broke
JAMES - August 16, 2022
Tool Type
Grass Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Socket set
Parts Used
Replaced spool.
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Metal insert (where line exits) on hub blew out and caused line to break early and hang up on exit on a dewalt 40v max string trimmer
Jeremy - June 14, 2022
Tool Type
Grass Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, 1/2\\
Parts Used
Removed line spool, removed 1/2" nut holding the bump spring, slid the entire hub assembly off and replaced with the new one by aligning the new hub and bump spring on center shaft and replaced the 1/2" nut hand tight. Super easy.
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the spool was bad from edging with it
Donald - August 26, 2020
Tool Type
Grass Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, None
Parts Used
removed the old spool and put the new one on,just turn it off the spindle and screw the new one on,that simple,no tools required
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Top of the spool was worren out
Anita - April 19, 2019
👍 1 of 6 people found this instruction helpful
Tool Type
Grass Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers
Parts Used
Took the old one off put the new one on.
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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.
