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RY40021
RY40021 Ryobi Trimmer
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$6.25
This spool cap is for line trimmers.
Spool cap covers the bottom of the line spool and prevents the spool from falling out of the spool housing.
In Stock
Order now and your part arrives by Mar 20
In Stock
Order now and your part arrives by Mar 20
$6.25
This special screw is a genuine Ryobi replacement part, not an aftermarket alternative. It is supplied directly from original equipment manufacturer for use with string trimmers and edgers. This screw...
In Stock
Order now and your part arrives by Mar 20
$15.96
This grass deflector assembly is designed for Ryobi string trimmers and edgers. It is a genuine OEM supplied item, not an aftermarket imitation. This part is secured over the cutting head to protect t...
In Stock
Order now and your part arrives by Mar 20
This motor housing assembly is a genuine OEM sourced item that is specially designed for Ryobi string trimmers and edgers. It is the main housing for the electric motor which is sold separately. This ...
No Longer Available
This is a genuine OEM sourced replacement part used on specific Ryobi edgers. The string head assembly is constructed of metal and plastic, and fitted onto the motor mounting plate. This part has been...
No Longer Available
This part is an OEM from Ryobi. The screw (m4 x 14mm bl) is compatible with a variety of lawn and garden tools. The metal screw is often used to help secure the housing assembly. This item is sold ind...
In Stock
Order now and your part arrives by Mar 20
$78.44
This is an authentic OEM part. This charger is compatible with the Ryobi equipment listed below and is used to charge 40V batteries. Please note that a weak or defective battery can damage the charger...
In Stock
Order now and your part arrives by Mar 20
$6.25
This is a genuine Ryobi replacement part that has been sourced from the original manufacturer to be used with trimmers, blowers, and edgers. The screw is used with different types of equipment and the...
In Stock
Order now and your part arrives by Mar 20
$6.25
This is a genuine OEM sourced part which is specially designed for Ryobi string trimmers and edgers. The plate is utilized to secure the motor It is an identical replacement for a missing or a damaged...
In Stock
Order now and your part arrives by Mar 20
In Stock
Order now and your part arrives by Mar 20
$2.99
This is an original replacement part sourced directly from the manufacturer. The glamour ring is found in Ryobi trimmers. This part is made of high-quality plastic, and is placed on the housing for ...
In Stock
Order now and your part arrives by Mar 20
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Michael
May 9, 2022
Cordless weedtrimmer wont turn on .Battery is fully charged
For model number RY40021

Hi Michael,
Thank you for your question. If the trimmer is charged, but will not start, the bottom of the trimmer around the area where the line comes out is likely clogged with grass trimmings and debris. You will need to turn the power off to the trimmer and clean it. If you have any questions, please let us know. We are open 7 days a week. We look forward to hearing from you!
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
- Customer:
- Charles T from WALDORF, MD
- Parts Used:
- 310904001
- Difficulty Level:
- Very Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Screw drivers
Cutter for feeder broke off and required replacement of new deflector assembly
Repair was quick, simple and easy. Only tool needed was a phillips head screwdriver. Removal of three screws, remove old deflector, attach/align new deflector, insert screws and tighten. That's all to it. less than 2 minutes.
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- Customer:
- Dennis from ARVADA, CO
- Parts Used:
- 310904001
- Difficulty Level:
- Really Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Screw drivers
Cover broke
Removed three screws/cover replaced cover and screws
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- Customer:
- Nick from BOCA RATON, FL
- Parts Used:
- 741921002
- Difficulty Level:
- Easy
- Total Repair Time:
- 30 - 60 mins
- Tools:
- Pliers
motor burned out
New motor was pretty much plug and play. Grass trimmer has about a dozen 2,5mm hex screws that hold the halves of the head together. Once unscrewed, there are two stickers that need to be peeled off with a blade (I used contact adhesive to reseat them after) and then everything comes apart. The motor has spade connectors but my origina
... Read more
l motor had pigtails so I chopped them off and crimped on some female connectors. Everything works like new!
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