Gas Line Trimmer

Model # UT20818 Official Homelite trimmer/brushcutter

Here are the diagrams and repair parts for Official Homelite UT20818 trimmer/brushcutter, as well as links to manuals and error code tables, if available.

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Browse Parts for
UT20818 Line Trimmers
Deflector UP06710
Deflector

Part #UP06710

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

Line Trimmer Blade UP04119
Line trimmer blade

Part #UP04119

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

Flange Washer UP03415
Flange washer

Part #UP03415

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

Washer UP04129
#28

Shaft/spool/string/grass deflector diagram

Washer

Part #UP04129

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

Screw UP04254
Screw

Part #UP04254

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

Washer UP04275
Washer

Part #UP04275

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

Screw UP04140
#4

Carburetor/fuel tank diagram

Screw

Part #UP04140

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

Gasket UP04308
Gasket

Part #UP04308

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

Air Filter D98760B
Air filter

Part #D98760B

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

Flex Shaft UP04717
#5

Shaft/spool/string/grass deflector diagram

Flex shaft

Part #UP04717

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.…