RYCST55 (090411004) Ryobi Trimmer - Overview

Sections of the RYCST55

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Keep searches simple, eg. "belt" or "pump".
Spring – Part Number: 06713
Spring
PartSelect #: PS12614652
Manufacturer #: 06713
This is a genuine OEM replacement part, it is sold individually. This spring is used in a number of String Trimmers and Brush Cutters. This Spring is part of the String advancing system. It is placed ...
$5.95
  In Stock
Order within the next 6 hrs and your part ships today!
EXPAND-IT LABEL – Part Number: 940726013
EXPAND-IT LABEL
PartSelect #: PS18790127
Manufacturer #: 940726013
$5.95
  Special Order
SPOOL – Part Number: 526938001
SPOOL
PartSelect #: PS18785671
Manufacturer #: 526938001
$5.95
  Special Order
Hanger Cap – Part Number: 518019002
Hanger Cap
PartSelect #: PS9964412
Manufacturer #: 518019002
  No Longer Available
Label boom warning icons – Part Number: 940657032
Label boom warning icons
PartSelect #: PS12685239
Manufacturer #: 940657032
  No Longer Available
Curved Shaft Assembly – Part Number: 307486001
Curved Shaft Assembly
PartSelect #: PS11857289
Manufacturer #: 307486001
Discover the Curved Shaft Assembly from Ryobi, created exclusively for enhancing the performance of your power equipment. This specialized component is key to efficiency and precision in your gardenin...
  No Longer Available
String Guide – Part Number: 526939001
String Guide
PartSelect #: PS11857965
Manufacturer #: 526939001
  No Longer Available
Grass Deflector Assembly – Part Number: T308744001
Grass Deflector Assembly
PartSelect #: PS10051753
Manufacturer #: T308744001
Genuine OEM replacement part, this item is sold individually. This guard is used on the trimmer models shown below. The purpose of this part is to keep debris from being thrown by the cutting line and...
  No Longer Available
String Head Assembly – Part Number: 309562007
String Head Assembly
PartSelect #: PS11898236
Manufacturer #: 309562007
This cutting head is for line trimmers. The cutting head attaches to the driveshaft and houses the cutting line. Wear work gloves to protect your hands when installing this part.
  No Longer Available
Bolt – Part Number: A09361
Bolt
PartSelect #: PS12667796
Manufacturer #: A09361
This item is a genuine OEM sourced replacement part that is intended to be used with strimmers from Ryobi and Homelite. The metal fasteners are used to secure the cutting head guard to the lower porti...
  No Longer Available
String Head Housing – Part Number: 310643003
String Head Housing
PartSelect #: PS9939193
Manufacturer #: 310643003
Genuine OEM replacement part used on some models of Gas String Trimmers. This part is made out of Plastic with included Metal Eyelet. This part holds and secures the Spool. Please note: Spool, Spring ...
  No Longer Available
Bump Knob – Part Number: 308042002
Bump Knob
PartSelect #: PS12626741
Manufacturer #: 308042002
This is an OEM replacement part. It has a right hand thread screw to remove and attach it to the trimmer head. Its purpose is to hold the spool with the cutting line, in the spool housing. It also a...
  No Longer Available

Questions And Answers for RYCST55

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Common Symptoms of the RYCST55

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Engine revs but trimmer head will not turn
Fixed by
these parts
Fixing
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Old curved shaft for Ryobi had seized-up and wouldn't turn
I have been using string trimmers for over 40 years now, doing the grounds work at a small motel, and this is the best combination I have found!

I have the new 40V battery carbon fiber shaft model, but I use the curved shaft. I have stacked stone walls and many obstacles to get around, and the curved shaft works best. But, Ryobi sends their straight shaft with the new trimmer, and it turns in the opposite direction (counter clockwise) and is hard for me to get into the areas I need.

To correct this, I use the Oregon brand Gatorhead, which fits on the Ryobi with no modiification (easy) and the line comes in spiral discs which can work for either direction of trimmer head to dispense effortlessly. Now, I have a new curved shaft on a new trimmer with the head turning in the clockwise direction.

This item has been discontinued, so get it when you find one, and stock up on line discs too!

https://www.oregonproducts.com/en/gator%c2%ae-speedload%e2%84%a2-trimmer-head-pro-sm/p/24-250
Parts Used:
Curved Shaft Assembly
  • Mark from MANCHESTR CTR, VT
  • Difficulty Level:
    Very Easy
  • Total Repair Time:
    Less than 15 mins
  • Tools:
    Wrench (Adjustable)
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