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Craftsman
Gas Walk-Behind Mower

Model # 9178372 Official Craftsman lawn mower

Here are the diagrams and repair parts for Official Craftsman 9178372 lawn mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 300 parts  |
Ret Spring 4939M
#54

Mower housing diagram

Ret spring

Part #4939M

Replaced by #532003146

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Manufacturer substitution
This part replaces 4939M. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.09 | 
20% OFF Phone Price : $5.09
In Stock
Hub Bolt 1304H
#65

Seat and drive assembly diagram

Hub bolt

Part #1304H

Replaced by #596218701

?
Manufacturer substitution
This part replaces 1304H. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.64 | 
27% OFF Phone Price : $3.64
In Stock
Pin 786026
#50

Transaxle diagram

Pin

Part #786026

Replaced by #786026B

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Manufacturer substitution
This part replaces 786026. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.60 | 
18% OFF Phone Price : $5.60
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Battery 5111H1
#31

(electric starter) diagram

Battery

Part #5111H1

The manufacturer no longer makes this part, and there's no substitute part

Washer 19252016
Washer

Part #19252016

The manufacturer no longer makes this part, and there's no substitute part

Gear 778036
#43

Transaxle diagram

Gear

Part #778036

Replaced by #778036

?
Manufacturer substitution
This part replaces 778036. Substitute parts can look different from the original.
$64.24
In Stock
Gear 778037
#27

Transaxle diagram

Gear

Part #778037

Replaced by #778037

?
Manufacturer substitution
This part replaces 778037. Substitute parts can look different from the original.
$48.27
In Stock
1641-zerk 6855M
#44

Engine diagram

1641-zerk

Part #6855M

Replaced by #6855M

?
Manufacturer substitution
This part replaces 6855M. Substitute parts can look different from the original.
This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Head Assembly 794002
Head assembly

Part #794002

Replaced by #794328A

?
Manufacturer substitution
This part replaces 794002. Substitute parts can look different from the original.
$204.16
In Stock
Woodruff Key 9858M1
Woodruff key

Part #9858M1

The manufacturer no longer makes this part, and there's no substitute part

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 run rough?

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

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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 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 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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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

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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