Gas Line Trimmer

Model # ST-155 Official Homelite trimmer

Here are the diagrams and repair parts for Official Homelite ST-155 trimmer, as well as links to manuals and error code tables, if available.

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Browse Parts for
ST-155 Line Trimmers
Carburetor A-00047-C
#27

Figure 1 - engine diagram

Carburetor

Part #A-00047-C

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

Connector Drum A-00585-1
#52

Figure 1 - engine diagram

Connector drum

Part #A-00585-1

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

Primer Bulb 01201

#NI

All parts diagram

Primer bulb

Part #01201

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

Module 94711-B
#69

Figure 1 - engine diagram

Module

Part #94711-B

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

Gasket 98765-B
#22

Figure 1 - engine diagram

Gasket

Part #98765-B

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

Torque Bolt 24982-03

#NI

All parts diagram

Torque bolt

Part #24982-03

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

Bearing 98798
#65

Figure 1 - engine diagram

Bearing

Part #98798

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

Spring 98848
#22

Figure 2 diagram

Spring

Part #98848

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

Wire 98268
#38

Figure 1 - engine diagram

Wire

Part #98268

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

Crankshaft 98758-4
#15A

Figure 1 - engine diagram

Crankshaft

Part #98758-4

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, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

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.

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Top 10 electric lawn and garden tools for 2023

Learn about the top 10 must-have electric lawn & garden tools for 2023…

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.…

Grass line trimmer maintenance checklist

Grass line trimmer maintenance checklist

Find out how to take care of your grass line trimmer from the start of the trimming season until the end, with this help…