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Craftsman
Front-Engine Lawn Tractor

Model # 9178331 Official Craftsman riding lawn mower

Here are the diagrams and repair parts for Official Craftsman 9178331 riding 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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ALL PARTS
Showing 10 of 289 parts  |
Pin 786026
#50

Transaxle diagram

Pin

Part #786026

Replaced by #786026B

?
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
In Stock
Battery 5111H1
#24

Generator diagram

Battery

Part #5111H1

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

Nut 03530500
#36

Wheel assembly diagram

Nut

Part #03530500

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

Head Assembly 794001
Head assembly

Part #794001

Replaced by #794327A

?
Manufacturer substitution
This part replaces 794001. Substitute parts can look different from the original.
$198.76
In Stock
Cotter 06010416
#42

Wheel assembly diagram

Cotter

Part #06010416

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

Screw 792007
#49

Transaxle diagram

Screw

Part #792007

Replaced by #792007

?
Manufacturer substitution
This part replaces 792007. Substitute parts can look different from the original.
This item is not returnable
$4.37
In Stock
Axle Rh 774045
#15B

Transaxle diagram

Axle rh

Part #774045

Replaced by #774068

?
Manufacturer substitution
This part replaces 774045. Substitute parts can look different from the original.
$95.40
In Stock
Seal 788009
#60

Transaxle diagram

Seal

Part #788009

Replaced by #788009

?
Manufacturer substitution
This part replaces 788009. Substitute parts can look different from the original.
$11.60
In Stock
Roll Pin 792002
#4

Transaxle diagram

Roll pin

Part #792002

Replaced by #792049

?
Manufacturer substitution
This part replaces 792002. Substitute parts can look different from the original.
This item is not returnable
$6.77
In Stock
Washer 780042
#16

Transaxle diagram

Washer

Part #780042

Replaced by #780042

?
Manufacturer substitution
This part replaces 780042. Substitute parts can look different from the original.
This item is not returnable
$4.60
In Stock

Most common symptoms to help you fix your riding mowers & tractors

Choose a symptom to see related riding mower and lawn tractor repairs.

View all

How do I fix a flat tire on my riding mower?

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

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Why does my riding mower run rough or misfire?

Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

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Why won't my riding mower move?

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

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Why is the steering loose on my riding mower?

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

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Why is my riding mower leaking oil or gas?

Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …

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Why does my riding mower creep in neutral?

Main causes: shift lever needs adjustment, neutral control needs adjustment…

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Why won't my riding mower cut grass?

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

Read more

Why does my riding mower deck vibrate?

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…

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How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

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Most common repair guides to help fix your riding mowers & tractors

These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.

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How to replace a riding lawn mower rear tire

How to replace a riding lawn mower rear tire

Your mower can’t run on a damaged rear tire. Here’s how to install a new one.…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower blade

How to replace a riding lawn mower blade

If a blade on your mower is dull or bent, replace it following the steps in this repair guide.…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a riding lawn mower fuel filter

How to replace a riding lawn mower fuel filter

Help your mower run better by replacing the fuel filter during your riding mower's annual tune-up.…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your riding mowers & tractors

Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.

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How to remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer…

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Charging a battery in a riding lawn mower video

Charging a battery in a riding lawn mower video

Learn how to use a battery charger if your mower battery is dead.…

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Riding mower and tractor common questions

Riding mower and tractor common questions

You might find the answers to your questions about your riding mower or lawn tractor in this list of frequently asked qu…

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