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Homelite
Gas Line Trimmer

Model # UT20728 Official Homelite trim & edge

Here are the diagrams and repair parts for Official Homelite UT20728 trim & edge, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 99 parts  |
Ignition Kit A07174
#0

Ignition-rotor-starter diagram

Ignition kit

Part #A07174

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

Fuel Cap UP00106
#11

Carburator-fuel tank diagram

Fuel cap

Part #UP00106

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

Air Filter And Switch A04707A
#D

Muffler-air cleaner diagram

Air filter and switch

Part #A04707A

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

Muffler A07142A
#A

Muffler-air cleaner diagram

Muffler

Part #A07142A

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

Air Baffle UP03013
#10

Ignition-rotor-starter diagram

Air baffle

Part #UP03013

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

Grease 18453

#NI

All parts diagram

Grease

Part #18453

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

Line Trimmer Fuel Line, 10-ft 9477299

#NI

All parts diagram

Line trimmer fuel line, 10-ft

Part #9477299

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

Cutoff Pl A03832
#14

Shaft/spool-string/grass deflector diagram

Cutoff pl

Part #A03832

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

Air Filter D98760B
#5

Muffler-air cleaner diagram

Air filter

Part #D98760B

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 …

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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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