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 # 720R Official Ryobi line trimmer

Here are the diagrams and repair parts for Official Ryobi 720R line 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 98 parts  |
Head Assembly 147823

#NI

All parts diagram

Head assembly

Part #147823

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

Screw 683607
#13

Boom and trimmer diagram

Screw

Part #683607

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

Inner Reel 153600
#29

Boom and trimmer diagram

Inner reel

Part #153600

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

Blade Assembly 682061
#23

Boom and trimmer diagram

Blade assembly

Part #682061

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

Adjustment 682048
#7

Engine diagram

Adjustment

Part #682048

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

Retainer Ring 145570
#17

Boom and trimmer diagram

Retainer ring

Part #145570

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

Repair Kit 147171

#NI

All parts diagram

Repair kit

Part #147171

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

Assmy, J H 683815
#10

Boom and trimmer diagram

Assmy, j h

Part #683815

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

Housing 180021
#3

Boom and trimmer diagram

Housing

Part #180021

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

Screw 145888
#41

Engine diagram

Screw

Part #145888

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