Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Ryobi
Gas Line Trimmer

Model # RY30931 Official Ryobi trimmer

Here are the diagrams and repair parts for Official Ryobi RY30931 trimmer, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 116 parts  |
Line Trimmer Flat Washer 678008001
#18

Upper boom/front handle diagram

Line trimmer flat washer

Part #678008001

The manufacturer no longer makes this part, and there's no substitute part

Washer Cu 638017001
#14

Guard/spring head-ry30570 diagram

Washer cu

Part #638017001

The manufacturer no longer makes this part, and there's no substitute part

Washer 678018001
#15

Guard/spring head-ry30570 diagram

Washer

Part #678018001

The manufacturer no longer makes this part, and there's no substitute part

Piston W/r 308023003
#34

Short block/rotor/fuel tank diagram

Piston w/r

Part #308023003

The manufacturer no longer makes this part, and there's no substitute part

Clutch Assembly 300960002
#4

Short block/rotor/fuel tank diagram

Clutch assembly

Part #300960002

The manufacturer no longer makes this part, and there's no substitute part

Carburetor Bolt 660346002
#26

Short block/rotor/fuel tank diagram

Carburetor bolt

Part #660346002

The manufacturer no longer makes this part, and there's no substitute part

Screw, # 8 660634001
#33

Upper boom/front handle diagram

Screw, # 8

Part #660634001

The manufacturer no longer makes this part, and there's no substitute part

Line Trimmer Ignition Coil 308389002
#42

Short block/rotor/fuel tank diagram

Line trimmer ignition coil

Part #308389002

The manufacturer no longer makes this part, and there's no substitute part

Line Trimmer Spacer 638284003
#12

Short block/rotor/fuel tank diagram

Line trimmer spacer

Part #638284003

The manufacturer no longer makes this part, and there's no substitute part

Line Trimmer Cutting Head Assembly 120950010
Line trimmer cutting head assembly

Part #120950010

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

View all

Why won't my gas line trimmer start?

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

Read more

Why does my gas line trimmer run rough?

Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

Read more

Why does my gas line trimmer leak gas?

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…

Read more

Repair guides for gas line trimmers

These step-by-step repair guides will help you safely fix what’s broken on your grass line trimmer.

View all
How to rebuild a line trimmer carburetor

How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer carburetor

How to replace a line trimmer carburetor

If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these …

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer fuel line

How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yours…

Read more
Repair difficulty
Time required
 15 minutes or less

Articles and videos for gas line trimmers

Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.

View all
Top 10 electric lawn and garden tools for 2023

Top 10 electric lawn and garden tools for 2023

Learn about the top 10 must-have electric lawn & garden tools for 2023…

Read more
How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Read more
Grass line trimmer maintenance checklist

Grass line trimmer maintenance checklist

Find out how to take care of your grass line trimmer from the start of the trimming season until the end, with this help…

Read more

Parts & More