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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.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 91 parts  |
Trigger UP03015
#19

Ignition/rotor/starter diagram

Trigger

Part #UP03015

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

Lawn & Garden Equipment Screw 82537
Lawn & garden equipment screw

Part #82537

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

Muffler Guard UP00027
#13

Engine internal diagram

Muffler guard

Part #UP00027

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

Str Rope 42 9789902
#12

Ignition/rotor/starter diagram

Str rope 42

Part #9789902

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

Air Filter And Switch A04707A
#D

Muffler and air cleaner diagram

Air filter and switch

Part #A04707A

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

Housing UP02965
#15

Ignition/rotor/starter diagram

Housing

Part #UP02965

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

Shaft Adapter 04355
#11

Shaft/spool and string diagram

Shaft adapter

Part #04355

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

Fuel Fitting 02067
#13

Carburetor and fuel tank diagram

Fuel fitting

Part #02067

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

Head String DA04591A
#19A

Shaft/spool and string diagram

Head string

Part #DA04591A

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

Starter Assembly UP02962
#E

Ignition/rotor/starter diagram

Starter assembly

Part #UP02962

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.

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Why won't my gas line trimmer start?

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

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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…

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Why does my gas line trimmer leak gas?

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

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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.

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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 …

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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…

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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.

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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…

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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.…

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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…

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