Homelite
Gas Line Trimmer

Model # UT20023A Official Homelite 25-cc string trimmer

Here are the diagrams and repair parts for Official Homelite UT20023A 25-cc string 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.

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 89 parts  |

Operator 983000337

#NI01

All parts diagram

Operator

Part #983000337

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

Piston Ring PS04468
#48

Short block/carburetor/crankcase diagram

Piston ring

Part #PS04468

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

Spring 95020A
#14

Short block/carburetor/crankcase diagram

Spring

Part #95020A

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

Line Trimmer Screw 983823001
#4

Curved shaft/spool/front handle diagram

Line trimmer screw

Part #983823001

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

Air Baffle PS00326
#34

Short block/carburetor/crankcase diagram

Air baffle

Part #PS00326

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

Tubing 0143910
#15

Short block/carburetor/crankcase diagram

Tubing

Part #0143910

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

Handle 98822A
#15

Curved shaft/spool/front handle diagram

Handle

Part #98822A

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

Line Trimmer Recoil Starter Pulley 98770A
#31

Short block/carburetor/crankcase diagram

Line trimmer recoil starter pulley

Part #98770A

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

Spring A98773A
#30

Short block/carburetor/crankcase diagram

Spring

Part #A98773A

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

10-24x.75 984812001
#19

Short block/carburetor/crankcase diagram

10-24x.75

Part #984812001

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.

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

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

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

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.

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…

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 …

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…

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.

Solving 3 common problems with line trimmer cutting lines

Solving 3 common problems with line trimmer cutting lines

Follow these tips to prevent the cutting line on your grass line trimmer from breaking or feeding out too much or too li…

How to replace a line trimmer fuel line video

How to replace a line trimmer fuel line video

Follow the steps in this video to replace a leaking fuel line in a line trimmer.…

How to tune up a grass line trimmer video

How to tune up a grass line trimmer video

Tune of your grass line trimmer, following the steps in this video.…