Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Craftsman
Gas Line Trimmer

Model # 917773420 Official Craftsman high wheel line trimmer

Here are the diagrams and repair parts for Official Craftsman 917773420 high wheel line trimmer, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

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

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Owner’s manual
  View engine

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 221 parts  |
Lock Nut 83923
#27

Engine diagram

Lock nut

Part #83923

Replaced by #532409149

?
Manufacturer substitution
This part replaces 83923. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Hex Flange Lock Nut 145212
#14

Chassis assembly diagram

Hex flange lock nut

Part #145212

Replaced by #532409149

?
Manufacturer substitution
This part replaces 145212. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Handle Knob 136376
#12

Engine diagram

Handle knob

Part #136376

Replaced by #532185577

?
Manufacturer substitution
This part replaces 136376. Substitute parts can look different from the original.
BEST SELLER
$10.64 | 
16% OFF Phone Price : $12.64
In Stock
High-wheel Trimmer Driveshaft Belt 169790
#4

Chassis assembly diagram

High-wheel trimmer driveshaft belt

Part #169790

Replaced by #532185476

?
Manufacturer substitution
This part replaces 169790. Substitute parts can look different from the original.
BEST SELLER

Get free shipping with Automatic Reorder

$30.01 | 
17% OFF Phone Price : $36.01
In Stock
Plate Assembly 174544
#34

Chassis assembly diagram

Plate assembly

Part #174544

Replaced by #594935003

?
Manufacturer substitution
This part replaces 174544. Substitute parts can look different from the original.
BEST SELLER
$56.95 | 
10% OFF Phone Price : $62.95
In Stock
Line Trimmer Drive Pulley 169792
#25

Chassis assembly diagram

Line trimmer drive pulley

Part #169792

Replaced by #596878501

?
Manufacturer substitution
This part replaces 169792. Substitute parts can look different from the original.
BEST SELLER
$147.72 | 
8% OFF Phone Price : $159.72
In Stock
Mow Ball Assembly 172342
#40

Chassis assembly diagram

Mow ball assembly

Part #172342

Replaced by #596878501

?
Manufacturer substitution
This part replaces 172342. Substitute parts can look different from the original.
BEST SELLER
$147.72 | 
8% OFF Phone Price : $159.72
In Stock
Line Trimmer Return Spring 173811
#15

Chassis assembly diagram

Line trimmer return spring

Part #173811

Replaced by #532173811

?
Manufacturer substitution
This part replaces 173811. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Rope Guide 153638
#16

Engine diagram

Rope guide

Part #153638

Replaced by #586122501

?
Manufacturer substitution
This part replaces 153638. Substitute parts can look different from the original.
This item is not returnable
$15.59 | 
11% OFF Phone Price : $17.59
In Stock
String Line 79991

#NI

All parts diagram

String line

Part #79991

Replaced by #VS155T21-24

?
Manufacturer substitution
This part replaces 79991. Substitute parts can look different from the original.
$17.20 | 
10% OFF Phone Price : $19.20
In Stock

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

View all

Why won't my gas line trimmer start?

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

Read more

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…

Read more

Why does my gas line trimmer leak gas?

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

Read more

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.

View all
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…

Read more
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.

View all
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…

Read more
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.…

Read more
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…

Read more

Parts & More