Homelite
Gas Line Trimmer

Model # ST-175C Official Homelite trimmer

Here are the diagrams and repair parts for Official Homelite ST-175C trimmer, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

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Showing 10 of 215 parts  |

Lawn & Garden Equipment Screw 82541
#61

Figure 1 diagram

Lawn & garden equipment screw

Part #82541

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

Spring 98848
Spring

Part #98848

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

Line Trimmer Warning Decal 00308
#13

Figure 4 diagram

Line trimmer warning decal

Part #00308

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

Piston Ring 96935
#13

Figure 1 diagram

Piston ring

Part #96935

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

Spool/str DA-98912-C
#23

Figure 4 diagram

Spool/str

Part #DA-98912-C

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

Throttle Cable A-03005
#34

Figure 5 diagram

Throttle cable

Part #A-03005

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

Case Cover 01023-B
#19

Figure 1 diagram

Case cover

Part #01023-B

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

Line Trimmer Primer Bulb UP04803

#NI

All parts diagram

Line trimmer primer bulb

Part #UP04803

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

Box A-01440-A
#28

Figure 1 diagram

Box

Part #A-01440-A

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

Lead A-98919
Lead

Part #A-98919

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.

Top 10 electric lawn and garden tools for 2023

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…