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Homelite
Gas Line Trimmer

Model # UT-20642 Official Homelite trimmer

Here are the diagrams and repair parts for Official Homelite UT-20642 trimmer, 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 114 parts  |
Warning Decal 04154
#31

Cabinet parts diagram

Warning decal

Part #04154

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

Complete Starter Assembly (includes #'s 5-11) A-07143
#E

Cabinet parts diagram

Complete starter assembly (includes #'s 5-11)

Part #A-07143

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

Support 07183
#34

Cabinet parts diagram

Support

Part #07183

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

Choke Lever 07377
#17

Cabinet parts diagram

Choke lever

Part #07377

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

Hand Control A-07144
#23A

Cabinet parts diagram

Hand control

Part #A-07144

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

Repower Short Block (30cc Non-clutch Models) A-07134
#1A

Cabinet parts diagram

Repower short block (30cc non-clutch models)

Part #A-07134

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

Screw 04474
#13

Cabinet parts diagram

Screw

Part #04474

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

Screen 06502
#10

Cabinet parts diagram

Screen

Part #06502

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

Wire 98268
#20

Cabinet parts diagram

Wire

Part #98268

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

Coupler Assembly (incl. 24, 25, 26, 27, 28, 29) (ut20642, Z730ca) A-07901
#23

Cabinet parts diagram

Coupler assembly (incl. 24, 25, 26, 27, 28, 29) (ut20642, z730ca)

Part #A-07901

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…

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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…

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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

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

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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