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  |

Screen 06502
#2

Muffler and air cleaner diagram

Screen

Part #06502

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

Screw 82600
#1

Muffler and air cleaner diagram

Screw

Part #82600

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

Filter 49422
#7

Carburetor and fuel tank diagram

Filter

Part #49422

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

Blade 07076
#13

Shaft/spool and string diagram

Blade

Part #07076

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

Tubing 0143910
#9

Carburetor and fuel tank diagram

Tubing

Part #0143910

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

Fuel Tank UP00020
#F

Carburetor and fuel tank diagram

Fuel tank

Part #UP00020

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

Spool Line DA09364
#16

Shaft/spool and string diagram

Spool line

Part #DA09364

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

Heat Dam 98768A
#3

Carburetor and fuel tank diagram

Heat dam

Part #98768A

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

Start Grip UP03026
#14

Ignition/rotor/starter diagram

Start grip

Part #UP03026

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

Trigger UP03015
#19

Ignition/rotor/starter diagram

Trigger

Part #UP03015

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, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

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

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.

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…

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.…

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…