Gas Line Trimmer

Model # UT20817 Official Homelite trimmer/brushcutter

Here are the diagrams and repair parts for Official Homelite UT20817 trimmer/brushcutter, as well as links to manuals and error code tables, if available.

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Browse Parts for
UT20817 Line Trimmers
Retainer DA98866A
Retainer

Part #DA98866A

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

Shaft UP04891
#4

Shaft/spool/string/grass deflector diagram

Shaft

Part #UP04891

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

Bumper UP03501
#13

Carburetor/fuel tank diagram

Bumper

Part #UP03501

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

Screw UP04131
#2

Carburetor/fuel tank diagram

Screw

Part #UP04131

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

Pulley UP03012
Pulley

Part #UP03012

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

Screw UP04345
#9

Engine internal diagram

Screw

Part #UP04345

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

Connector UP04104
#12

Ignition/rotor/starter/clutch diagram

Connector

Part #UP04104

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

Form Screw UP03898
Form screw

Part #UP03898

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

Flexible S UP05072
#9

Shaft/spool/string/grass deflector diagram

Flexible s

Part #UP05072

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

Flat Washer UP04241
Flat washer

Part #UP04241

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.…