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Craftsman
Gas Line Trimmer

Model # 917773720 Official Craftsman high wheel line trimmer

Here are the diagrams and repair parts for Official Craftsman 917773720 high wheel line 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.

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Model diagram and schematic

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Showing 10 of 232 parts  |
Lock Nut 83923
#27

Weedtrimmer diagram

Lock nut

Part #83923

Replaced by #532409149

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Manufacturer substitution
This part replaces 83923. Substitute parts can look different from the original.
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Hex Flange Lock Nut 145212
#14

Chassis diagram

Hex flange lock nut

Part #145212

Replaced by #532409149

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Manufacturer substitution
This part replaces 145212. Substitute parts can look different from the original.
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Handle Knob 136376
#12

Weedtrimmer diagram

Handle knob

Part #136376

Replaced by #532185577

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Manufacturer substitution
This part replaces 136376. Substitute parts can look different from the original.
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High-wheel Trimmer Driveshaft Belt 169790
#4

Chassis diagram

High-wheel trimmer driveshaft belt

Part #169790

Replaced by #532185476

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Manufacturer substitution
This part replaces 169790. Substitute parts can look different from the original.
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$30.91 | 
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Plate Assembly 174544
#34

Chassis diagram

Plate assembly

Part #174544

Replaced by #594935003

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Manufacturer substitution
This part replaces 174544. Substitute parts can look different from the original.
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Lawn & Garden Equipment Washer 52784
#49

Chassis diagram

Lawn & garden equipment washer

Part #52784

Replaced by #819061216

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Manufacturer substitution
This part replaces 52784. Substitute parts can look different from the original.
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Lock Nut 751592
#8

Chassis diagram

Lock nut

Part #751592

Replaced by #596322601

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Manufacturer substitution
This part replaces 751592. Substitute parts can look different from the original.
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$5.11
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Line Trimmer Drive Pulley 169792
#25

Chassis diagram

Line trimmer drive pulley

Part #169792

Replaced by #596878501

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Manufacturer substitution
This part replaces 169792. Substitute parts can look different from the original.
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$143.29 | 
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Mow Ball Assembly 172342
#40

Chassis diagram

Mow ball assembly

Part #172342

Replaced by #596878501

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Manufacturer substitution
This part replaces 172342. Substitute parts can look different from the original.
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Line 169802
#2

Chassis diagram

Line

Part #169802

Replaced by #VS155T21-24

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Manufacturer substitution
This part replaces 169802. Substitute parts can look different from the original.
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Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

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Why does my gas line trimmer run rough?

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

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Why won't my gas line trimmer start?

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

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Why does my gas line trimmer leak gas?

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…

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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.

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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…

Read more
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 …

Read more
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…

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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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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.…

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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…

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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.…

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