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Craftsman
Gas Walk-Behind Mower

Model # 917387721 Official Craftsman rotary lawn mower

Here are the diagrams and repair parts for Official Craftsman 917387721 rotary lawn mower, 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:

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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.

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ALL PARTS
Showing 10 of 191 parts  |
Lawn Mower Blade Adapter 850977
#39

Replacement parts diagram

Lawn mower blade adapter

Part #850977

Replaced by #581547901

?
Manufacturer substitution
This part replaces 850977. Substitute parts can look different from the original.
BEST SELLER
$19.36 | 
9% OFF Phone Price : $21.36
In Stock
Walk-behind Lawn Mower Selector Knob 87877
#20

Replacement parts diagram

Walk-behind lawn mower selector knob

Part #87877

Replaced by #532087877

?
Manufacturer substitution
This part replaces 87877. Substitute parts can look different from the original.
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Tapping Screw 750097
#4

Replacement parts diagram

Tapping screw

Part #750097

Replaced by #817021008

?
Manufacturer substitution
This part replaces 750097. Substitute parts can look different from the original.
This item is not returnable
$3.99
In Stock
Spring 700331X004
#21

Replacement parts diagram

Spring

Part #700331X004

Replaced by #532401621

?
Manufacturer substitution
This part replaces 700331X004. Substitute parts can look different from the original.
$8.54
In Stock
Height Spacer 146630
#18

Replacement parts diagram

Height spacer

Part #146630

Replaced by #532401629

?
Manufacturer substitution
This part replaces 146630. Substitute parts can look different from the original.
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Lawn Mower Spacer 701313
#12

Replacement parts diagram

Lawn mower spacer

Part #701313

Replaced by #584456801

?
Manufacturer substitution
This part replaces 701313. Substitute parts can look different from the original.
$8.54
In Stock
Washer 62335
#23

Replacement parts diagram

Washer

Part #62335

Replaced by #532062335

?
Manufacturer substitution
This part replaces 62335. Substitute parts can look different from the original.
$13.69
In Stock
Lawn & Garden Equipment Pop Rivet 128415

#NI

All parts diagram

Lawn & garden equipment pop rivet

Part #128415

Replaced by #532128415

?
Manufacturer substitution
This part replaces 128415. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Rod.hinge.co 147286
#46

Replacement parts diagram

Rod.hinge.co

Part #147286

Replaced by #532147286

?
Manufacturer substitution
This part replaces 147286. Substitute parts can look different from the original.
This item is not returnable
$9.31 | 
10% OFF Phone Price : $10.31
In Stock
Hairpin 51793
#44

Replacement parts diagram

Hairpin

Part #51793

Replaced by #532051793

?
Manufacturer substitution
This part replaces 51793. Substitute parts can look different from the original.
This item is not returnable
$7.98 | 
11% OFF Phone Price : $8.98
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…

Read more

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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