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Craftsman
Gas Walk-Behind Mower

Model # 917374940 Official Craftsman lawn mower

Here are the diagrams and repair parts for Official Craftsman 917374940 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 239 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
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Lawn Mower Hex Flange Nut 409149
#57

Drive control/gear case/wheels diagram

Lawn mower hex flange nut

Part #409149

Replaced by #532409149

?
Manufacturer substitution
This part replaces 409149. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
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Lawn Mower Grass Bag Frame 419951
#31

Engine/housing/handle diagram

Lawn mower grass bag frame

Part #419951

Replaced by #585054702

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Manufacturer substitution
This part replaces 419951. Substitute parts can look different from the original.
BEST SELLER
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$23.98 | 
20% OFF Phone Price : $29.98
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Lawn Mower Wheel, 8 X 1.75-in 400249X460
#40

Drive control/gear case/wheels diagram

Lawn mower wheel, 8 x 1.75-in

Part #400249X460

Replaced by #583733801

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Manufacturer substitution
This part replaces 400249X460. Substitute parts can look different from the original.
BEST SELLER
$26.89 | 
18% OFF Phone Price : $32.89
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Return Spring 406558
#55

Drive control/gear case/wheels diagram

Return spring

Part #406558

Replaced by #532406558

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Manufacturer substitution
This part replaces 406558. Substitute parts can look different from the original.
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$9.31 | 
10% OFF Phone Price : $10.31
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Mulch Door Assembly 423358
#33

Engine/housing/handle diagram

Mulch door assembly

Part #423358

Replaced by #532420019

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Manufacturer substitution
This part replaces 423358. Substitute parts can look different from the original.
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$19.98 | 
9% OFF Phone Price : $21.98
In Stock
Lawn Mower Drive Cable 427411
#9

Drive control/gear case/wheels diagram

Lawn mower drive cable

Part #427411

Replaced by #583441401

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Manufacturer substitution
This part replaces 427411. Substitute parts can look different from the original.
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$49.98 | 
11% OFF Phone Price : $55.98
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Handle Knob 182398
#6

Engine/housing/handle diagram

Handle knob

Part #182398

Replaced by #532182398

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Manufacturer substitution
This part replaces 182398. Substitute parts can look different from the original.
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$7.98 | 
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Lawn Mower Wheel 428780X428
#32

Drive control/gear case/wheels diagram

Lawn mower wheel

Part #428780X428

Replaced by #581336701

?
Manufacturer substitution
This part replaces 428780X428. Substitute parts can look different from the original.
BEST SELLER
$49.98 | 
11% OFF Phone Price : $55.98
In Stock
Control.ez.2 427444
#1

Drive control/gear case/wheels diagram

Control.ez.2

Part #427444

Replaced by #598688301

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Manufacturer substitution
This part replaces 427444. Substitute parts can look different from the original.
BEST SELLER
$41.00 | 
13% OFF Phone Price : $47.00
In Stock

Symptoms for gas walk-behind mowers

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

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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…

Read more

Why does my lawn mower run rough?

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

Read more

Why does my lawn mower stall?

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

Read more

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 cut unevenly?

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

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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…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower drive cable

How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Read more
Repair difficulty
Time required
 30 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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Tapping into a new feature in the Search Bar on Sears PartsDirect

Tapping into a new feature in the Search Bar on Sears PartsDirect

Learn about a new feature added to the Search Bar on Sears PartsDirect…

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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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