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Craftsman
Gas Walk-Behind Mower

Model # 917378300 Official Craftsman lawn mower

Here are the diagrams and repair parts for Official Craftsman 917378300 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

Model diagram and schematic

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ALL PARTS
Showing 10 of 97 parts  |
Lawn & Garden Equipment Nut 409148
#33

Drive control/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.
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Lawn Mower Hex Flange Nut 409149
#57

Drive control/wheels diagram

Lawn mower hex flange nut

Part #409149

Replaced by #532409149

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Manufacturer substitution
This part replaces 409149. Substitute parts can look different from the original.
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Hndl.knob.bl 189713X428
#12

Engine/housing/handle diagram

Hndl.knob.bl

Part #189713X428

Replaced by #532185577

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Manufacturer substitution
This part replaces 189713X428. Substitute parts can look different from the original.
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Poulan Lawn Mower Ground Drive Belt, 3/8 X 35-1/2-in (replaces 406557, 580364611) 580364604
#44

Drive control/wheels diagram

Poulan lawn mower ground drive belt, 3/8 x 35-1/2-in (replaces 406557, 580364611)

Part #580364604

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Poulan Lawn Mower Blade Adapter (replaces 581098501) 581851501
#46

Engine/housing/handle diagram

Poulan lawn mower blade adapter (replaces 581098501)

Part #581851501

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Bolt 17000510
Bolt

Part #17000510

Replaced by #817000510

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Manufacturer substitution
This part replaces 17000510. Substitute parts can look different from the original.
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Cable Assembly 585650803
#2

Engine/housing/handle diagram

Cable assembly

Part #585650803

Replaced by #587326602

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Manufacturer substitution
This part replaces 585650803. Substitute parts can look different from the original.
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Poulan Lawn Mower Zone Control Cable 581952101
#9

Drive control/wheels diagram

Poulan lawn mower zone control cable

Part #581952101

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Nut.flange.5 155377
#57

Engine/housing/handle diagram

Nut.flange.5

Part #155377

Replaced by #596039201

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Manufacturer substitution
This part replaces 155377. Substitute parts can look different from the original.
This item is not returnable
$5.11
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Poulan Lawn Mower Idler Pulley (replaces 580364301, 596856601, 596856602) 587969201
#86

Drive control/wheels diagram

Poulan lawn mower idler pulley (replaces 580364301, 596856601, 596856602)

Part #587969201

This item is not returnable
$17.31 | 
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Symptoms for gas walk-behind mowers

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

View all

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 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…

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…

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…

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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…

Read more
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. …

Read more
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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