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Model:#580328310
Gas Line Trimmer

Model # UT20042 Official Homelite 25-cc string trimmer

Here are the diagrams and repair parts for Official Homelite UT20042 25-cc string trimmer, as well as links to manuals and error code tables, if available.

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Browse Parts for
UT20042 Line Trimmers
Screw 82543
#36

Short block/carburetor/crankcase diagram

Screw

Part #82543

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

Lawn & Garden Equipment Engine Fuel Tank Pad 98792
#23

Short block/carburetor/crankcase diagram

Lawn & garden equipment engine fuel tank pad

Part #98792

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

Clamp Shield PS02391
#13

Straight shaft / shield diagram

Clamp shield

Part #PS02391

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

Piston 3081102
#49

Short block/carburetor/crankcase diagram

Piston

Part #3081102

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

Screw 093221
#4

Short block/carburetor/crankcase diagram

Screw

Part #093221

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

Fuel Tank PA00116
#17

Short block/carburetor/crankcase diagram

Fuel tank

Part #PA00116

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

Str Rope 42 9789902
#32

Short block/carburetor/crankcase diagram

Str rope 42

Part #9789902

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

Ring Clip 6969102
#45

Short block/carburetor/crankcase diagram

Ring clip

Part #6969102

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

10-24x.75 984812001
#19

Short block/carburetor/crankcase diagram

10-24x.75

Part #984812001

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

Air Box Cover PS02156
#10

Short block/carburetor/crankcase diagram

Air box cover

Part #PS02156

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, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

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

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.

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.…

Solving 3 common problems with line trimmer cutting lines

Solving 3 common problems with line trimmer cutting lines

Follow these tips to prevent the cutting line on your grass line trimmer from breaking or feeding out too much or too li…

How to replace a line trimmer fuel line video

How to replace a line trimmer fuel line video

Follow the steps in this video to replace a leaking fuel line in a line trimmer.…

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