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Craftsman
Gas Walk-Behind Mower

Model # 917379090 Official Craftsman rotary lawn mower

Here are the diagrams and repair parts for Official Craftsman 917379090 rotary lawn mower, as well as links to manuals and error code tables, if available.

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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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Showing 10 of 239 parts  |
Dust Cover 180504
#14

Wheels/tires/belt diagram

Dust cover

Part #180504

Replaced by #581840401

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Manufacturer substitution
This part replaces 180504. Substitute parts can look different from the original.
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$8.22 | 
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Nut 132004
#71

Engine/handle/housing/wheels 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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This item is not returnable
$2.64 | 
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Lawn & Garden Equipment Lock Nut 73800400
Lawn & garden equipment lock nut

Part #73800400

Replaced by #582478602

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Manufacturer substitution
This part replaces 73800400. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.64 | 
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Torsion Spring 152124
#29

Engine/handle/housing/wheels diagram

Torsion spring

Part #152124

Replaced by #532152124

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Manufacturer substitution
This part replaces 152124. Substitute parts can look different from the original.
This item is not returnable
$7.98 | 
11% OFF Phone Price : $8.98
In Stock
American Yard Products Lawn Mower Anti-fold Bracket 186079
#5

Engine/handle/housing/wheels diagram

American yard products lawn mower anti-fold bracket

Part #186079

Replaced by #586122501

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Manufacturer substitution
This part replaces 186079. Substitute parts can look different from the original.
This item is not returnable
$15.59 | 
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Belt 146527
#5

Wheels/tires/belt diagram

Belt

Part #146527

Replaced by #532157769

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Manufacturer substitution
This part replaces 146527. Substitute parts can look different from the original.

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Discharge Guard 151889
#25

Engine/handle/housing/wheels diagram

Discharge guard

Part #151889

Replaced by #582979401

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Manufacturer substitution
This part replaces 151889. Substitute parts can look different from the original.
This item is not returnable
$15.98 | 
11% OFF Phone Price : $17.98
In Stock
Lawn Mower E-ring (replaces 12000057) 12000058
#12

Wheels/tires/belt diagram

Lawn mower e-ring (replaces 12000057)

Part #12000058

Replaced by #812000058

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Manufacturer substitution
This part replaces 12000058. Substitute parts can look different from the original.
This item is not returnable
$5.11
In Stock
Walk-behind Lawn Mower Selector Knob 87877
Walk-behind lawn mower selector knob

Part #87877

Replaced by #532087877

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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
Bolt 142748
#42

Engine/handle/housing/wheels diagram

Bolt

Part #142748

Replaced by #532174719

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Manufacturer substitution
This part replaces 142748. Substitute parts can look different from the original.
This item is not returnable
$13.69
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…

Read more

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.…

Read more
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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