Homelite
Gas Line Trimmer

Model # UT20734R Official Homelite trimmer/brushcutter

Here are the diagrams and repair parts for Official Homelite UT20734R trimmer/brushcutter, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 105 parts  |

Start Grip UP03026
#14

Ignition/rotor/starter/clutch diagram

Start grip

Part #UP03026

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

Bolt UP04295
#12

Engine internal diagram

Bolt

Part #UP04295

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

Blade D98717C

#NI18

All parts diagram

Blade

Part #D98717C

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

Housing Head Cup UP06567
#20

Shaft/spool/string/grass deflector diagram

Housing head cup

Part #UP06567

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

Spring UP03917
#13

Ignition/rotor/starter/clutch diagram

Spring

Part #UP03917

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

Head String DA04591A
Head string

Part #DA04591A

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

Tubing UP05860

#NI08

All parts diagram

Tubing

Part #UP05860

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

Piston Rod UP00768
#2

Engine internal diagram

Piston rod

Part #UP00768

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

Gasket UP03857
#5

Engine internal diagram

Gasket

Part #UP03857

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

Cylinder Kit UP04136
#4

Engine internal diagram

Cylinder kit

Part #UP04136

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.…