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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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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
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$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Handle Bolt 191574
#7

Engine/housing/handle/grassbag diagram

Handle bolt

Part #191574

Replaced by #532191574

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Manufacturer substitution
This part replaces 191574. Substitute parts can look different from the original.
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$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

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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

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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
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.
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$64.87 | 
8% OFF Phone Price : $70.87
In Stock
Nut 132004
#5

Engine/housing/handle/grassbag diagram

Nut

Part #132004

Replaced by #582478602

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Manufacturer substitution
This part replaces 132004. Substitute parts can look different from the original.
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$2.64 | 
27% OFF Phone Price : $3.64
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Lawn Mower Blade 180459
#31

Engine/housing/handle/grassbag diagram

Lawn mower blade

Part #180459

Replaced by #532180459

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Manufacturer substitution
This part replaces 180459. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable

Get free shipping with Automatic Reorder

$30.65 | 
16% OFF Phone Price : $36.65
In Stock
Lawn Mower Cable 406258
#9

Drive control/gear case/wheels diagram

Lawn mower cable

Part #406258

Replaced by #532406258

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Manufacturer substitution
This part replaces 406258. Substitute parts can look different from the original.
$39.70 | 
13% OFF Phone Price : $45.70
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 vibrate a lot?

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

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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 run rough?

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

Read more

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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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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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 rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

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

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

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Repair difficulty
Time required
 15 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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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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Types of walk-behind mower blades video

Types of walk-behind mower blades video

Learn about the different kinds of mower blades and how to maintain them.…

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