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
Homelite
Gas Line Trimmer

Model # UT20738 Official Homelite trimmer/brushcutter

Here are the diagrams and repair parts for Official Homelite UT20738 trimmer/brushcutter, 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 91 parts  |
Gasket 09343
Gasket

Part #09343

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

Short Block UP02994
Short block

Part #UP02994

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

Screw PS01565
#12

Engine internal diagram

Screw

Part #PS01565

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

10-spark P D96169C
#3

Ignition/rotor/starter diagram

10-spark p

Part #D96169C

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

Handle A07136
#1

Shaft/spool and string diagram

Handle

Part #A07136

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

Screw 82298
#9

Shaft/spool and string diagram

Screw

Part #82298

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

Retainer DA98866A
#23

Shaft/spool and string diagram

Retainer

Part #DA98866A

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

Ring PS01359
#3

Engine internal diagram

Ring

Part #PS01359

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

Cylinder UP07145
#4

Engine internal diagram

Cylinder

Part #UP07145

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

Trigger UP03207
#25

Ignition/rotor/starter diagram

Trigger

Part #UP03207

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 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 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 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
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
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…

Read more
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.…

Read more

Parts & More