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Craftsman
Gas Walk-Behind Mower

Model # 917371821 Official Craftsman lawn mower

Here are the diagrams and repair parts for Official Craftsman 917371821 lawn mower, as well as links to manuals and error code tables, if available.

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  • 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”.

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

Owner’s manual
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Model diagram and schematic

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ALL PARTS
Showing 10 of 269 parts  |
Lawn & Garden Equipment Nut 409148
#33

Drive control/gear case/wheels diagram

Lawn & garden equipment nut

Part #409148

Replaced by #532409149

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Manufacturer substitution
This part replaces 409148. 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
Lawn Mower Wheel Dust Cover 189403
#29

Drive control/gear case/wheels diagram

Lawn mower wheel dust cover

Part #189403

Replaced by #581840401

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Manufacturer substitution
This part replaces 189403. Substitute parts can look different from the original.
BEST SELLER
$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Lock Nut 73800500
#24

Engine/housing/handle/grassbag diagram

Lock nut

Part #73800500

Replaced by #596040501

?
Manufacturer substitution
This part replaces 73800500. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.11
In Stock
Return Spring 406558
#11

Drive control/gear case/wheels diagram

Return spring

Part #406558

Replaced by #532406558

?
Manufacturer substitution
This part replaces 406558. Substitute parts can look different from the original.
BEST SELLER
$9.31 | 
10% OFF Phone Price : $10.31
In Stock
Lawn Mower Drive Control Assembly 406254
#1

Drive control/gear case/wheels diagram

Lawn mower drive control assembly

Part #406254

Replaced by #583297901

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Manufacturer substitution
This part replaces 406254. Substitute parts can look different from the original.
BEST SELLER
$59.98 | 
9% OFF Phone Price : $65.98
In Stock
Washer 67725
#47

Drive control/gear case/wheels diagram

Washer

Part #67725

Replaced by #532067725

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Manufacturer substitution
This part replaces 67725. Substitute parts can look different from the original.
BEST SELLER
$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Lawn Mower Cable 406258
#9

Drive control/gear case/wheels diagram

Lawn mower cable

Part #406258

Replaced by #532406258

?
Manufacturer substitution
This part replaces 406258. Substitute parts can look different from the original.
$38.98 | 
13% OFF Phone Price : $44.98
In Stock
Short Lever 188281
#4

Drive control/gear case/wheels diagram

Short lever

Part #188281

Replaced by #583170901

?
Manufacturer substitution
This part replaces 188281. Substitute parts can look different from the original.
$30.64 | 
16% OFF Phone Price : $36.64
In Stock
Lawn Mower Wheel 193909X460
#40

Drive control/gear case/wheels diagram

Lawn mower wheel

Part #193909X460

Replaced by #532400542

?
Manufacturer substitution
This part replaces 193909X460. Substitute parts can look different from the original.
This item is not returnable
$30.64 | 
16% OFF Phone Price : $36.64
In Stock
Lawn Mower Handle 193664X479
#2

Engine/housing/handle/grassbag diagram

Lawn mower handle

Part #193664X479

Replaced by #583716401

?
Manufacturer substitution
This part replaces 193664X479. Substitute parts can look different from the original.
$33.31
In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

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Why does my lawn mower run rough?

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

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Why does my lawn mower cut unevenly?

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

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Why does my lawn mower vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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Why won't my lawn mower start?

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

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Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

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Why won't my lawn mower move?

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

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Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

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How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Read more
Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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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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Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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