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Craftsman
Front-Engine Lawn Tractor

Model # 9178371 Official Craftsman 36" riding lawn mower

Here are the diagrams and repair parts for Official Craftsman 9178371 36" riding 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.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 452 parts  |
Hub Bolt 1304H
#40

Steering assembly diagram

Hub bolt

Part #1304H

Replaced by #596218701

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Manufacturer substitution
This part replaces 1304H. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.10 | 
20% OFF Phone Price : $5.10
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
In Stock
Ground Strap 5114H
#23

Steering assembly diagram

Ground strap

Part #5114H

Replaced by #532004207

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Manufacturer substitution
This part replaces 5114H. Substitute parts can look different from the original.
This item is not returnable
$6.64 | 
13% OFF Phone Price : $7.64
In Stock
Washer 19252016
Washer

Part #19252016

Replaced by #532121749

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Manufacturer substitution
This part replaces 19252016. Substitute parts can look different from the original.
This item is not returnable
$3.98 | 
20% OFF Phone Price : $4.98
In Stock
Ring 792001
#3

Transaxle diagram

Ring

Part #792001

Replaced by #792001

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Manufacturer substitution
This part replaces 792001. Substitute parts can look different from the original.
This item is not returnable
$4.37
In Stock
Washer 19211616
#37

Wheel assembly diagram

Washer

Part #19211616

Replaced by #596933401

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Manufacturer substitution
This part replaces 19211616. Substitute parts can look different from the original.
This item is not returnable
$5.11
In Stock
Head Assembly 794001
Head assembly

Part #794001

Replaced by #794327A

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Manufacturer substitution
This part replaces 794001. Substitute parts can look different from the original.
$198.76
In Stock
Idler 778016
#66

Transaxle diagram

Idler

Part #778016

Replaced by #778016

?
Manufacturer substitution
This part replaces 778016. Substitute parts can look different from the original.
$46.24
In Stock
Spur 778024
#40

Transaxle diagram

Spur

Part #778024

Replaced by #778024A

?
Manufacturer substitution
This part replaces 778024. Substitute parts can look different from the original.
$26.29
In Stock
Gear 778039
#24

Transaxle diagram

Gear

Part #778039

Replaced by #799023

?
Manufacturer substitution
This part replaces 778039. Substitute parts can look different from the original.
$119.68
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.

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Why is my riding mower not cutting evenly?

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

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Why won't my riding mower start?

Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…

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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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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 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…

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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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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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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 move?

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

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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 the starter motor on a riding lawn mower

How to replace the starter motor on a riding lawn mower

If you hear the solenoid click but don’t hear the starter motor spin when you turn the key, follow these steps to replac…

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Repair difficulty
Time required
 30 minutes or less
How to rebuild a riding lawn mower carburetor

How to rebuild a riding lawn mower carburetor

Get your sputtering carburetor running smoothly in 60 minutes.…

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Repair difficulty
Time required
 60 minutes or less
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.…

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Repair difficulty
Time required
 60 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 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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Riding lawn mower engine clicks but doesn't turn over video

Riding lawn mower engine clicks but doesn't turn over video

Check the starter solenoid, starter motor, wiring, battery and engine.…

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