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
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 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
Line 169802
#2

Chassis assembly diagram

Line

Part #169802

Replaced by #VS155T21-24

?
Manufacturer substitution
This part replaces 169802. Substitute parts can look different from the original.
BEST SELLER
$17.20 | 
10% OFF Phone Price : $19.20
Back Order
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.
BEST SELLER
$17.20 | 
10% OFF Phone Price : $19.20
Back Order
Lock Nut 751592
#8

Chassis assembly diagram

Lock nut

Part #751592

Replaced by #596322601

?
Manufacturer substitution
This part replaces 751592. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.11
In Stock
Jackshaft 172520
#28

Chassis assembly diagram

Jackshaft

Part #172520

Replaced by #532172520

?
Manufacturer substitution
This part replaces 172520. Substitute parts can look different from the original.
This item is not returnable
$34.98 | 
15% OFF Phone Price : $40.98
In Stock
Locking Plate 172519
#33

Chassis assembly diagram

Locking plate

Part #172519

Replaced by #532172519

?
Manufacturer substitution
This part replaces 172519. Substitute parts can look different from the original.
This item is not returnable
$6.64 | 
13% OFF Phone Price : $7.64
In Stock
Drive Control 174037
#28

Engine diagram

Drive control

Part #174037

Replaced by #583061601

?
Manufacturer substitution
This part replaces 174037. Substitute parts can look different from the original.
$39.98 | 
13% OFF Phone Price : $45.98
In Stock

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

View all

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 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 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
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…

Read more
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.…

Read more
How to tune up a grass line trimmer video

How to tune up a grass line trimmer video

Tune of your grass line trimmer, following the steps in this video.…

Read more

Parts & More