Model # UT20621 Official Homelite line trimmer

Here are the diagrams and repair parts for Official Homelite UT20621 line 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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Showing 10 of 167 parts |

Warning decal

Part #04679

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

#15B

Complete starter diagram

Spacer

Part #035662

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

#D1

Muffler kit diagram

Air filter

Part #A-07140

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

#16

Muffler kit diagram

Snowblower carburetor gasket

Part #987661

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

Muffler kit diagram

Screw 8pk

Part #82599

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

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

Drive shaft housing diagram

Shaft

Part #98816

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

Lawn & garden equipment screw

Part #80295

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

#32

Muffler kit diagram

Spark plug

Part #96169-S

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

Line trimmer spool spring

Part #06713

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 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…

Why won't my gas line trimmer start?

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

Why does my gas line trimmer leak gas?

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.

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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

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

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.

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

Model # UT20621 Official Homelite line trimmer

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for gas line trimmers

Why does my gas line trimmer run rough?

Why won't my gas line trimmer start?

Why does my gas line trimmer leak gas?

Repair guides for gas line trimmers

How to rebuild a line trimmer carburetor

How to replace a line trimmer carburetor

How to replace a line trimmer fuel line

Articles and videos for gas line trimmers

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Solving 3 common problems with line trimmer cutting lines

How to replace a line trimmer fuel line video

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