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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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9178372 Walk-Behind Mowers
#54
Mower housing diagram
Ret spring
Part #4939M
Replaced by #532003146
?
Manufacturer substitution
This part replaces 4939M. Substitute parts can look different from the original.
This item is not returnable
$4.44 |
18% OFF Phone Price : $5.44
In Stock
E-ring
Part #98000071
Replaced by #812000029
?
Manufacturer substitution
This part replaces 98000071. Substitute parts can look different from the original.
This item is not returnable
$4.51 |
18% OFF Phone Price : $5.51
In Stock
#31
(electric starter) diagram
Battery
Part #5111H1
The manufacturer no longer makes this part, and there's no substitute part
#50
Transaxle diagram
Pin
Part #786026
Replaced by #786026B
?
Manufacturer substitution
This part replaces 786026. Substitute parts can look different from the original.
This item is not returnable
$4.60 |
18% OFF Phone Price : $5.60
In Stock
Washer
Part #19252016
Replaced by #532121749
?
Manufacturer substitution
This part replaces 19252016. Substitute parts can look different from the original.
This item is not returnable
$4.31 |
19% OFF Phone Price : $5.31
In Stock
#41
Transaxle diagram
Washer
Part #780001
Replaced by #780001
?
Manufacturer substitution
This part replaces 780001. Substitute parts can look different from the original.
This item is not returnable
$4.34
In Stock
#44
Engine diagram
1641-zerk
Part #6855M
Replaced by #532183226
?
Manufacturer substitution
This part replaces 6855M. Substitute parts can look different from the original.
This item is not returnable
$7.20 |
12% OFF Phone Price : $8.20
In Stock
#18
Right angle drive diagram
Cap seal
Part #786029
Replaced by #786029
?
Manufacturer substitution
This part replaces 786029. Substitute parts can look different from the original.
$34.58 |
15% OFF Phone Price : $40.58
In Stock
#10
Transaxle diagram
Ball
Part #792004
Replaced by #792004
?
Manufacturer substitution
This part replaces 792004. Substitute parts can look different from the original.
This item is not returnable
$4.37
In Stock
#9
Transaxle diagram
Spring
Part #792003
Replaced by #792003
?
Manufacturer substitution
This part replaces 792003. Substitute parts can look different from the original.
This item is not returnable
$4.37
In Stock
Symptoms for gas walk-behind mowers
Choose a symptom to see related walk-behind mower repairs.
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…
Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…
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.

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.…
Repair difficulty
Time required
60 minutes or less

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.…
Repair difficulty
Time required
15 minutes or less

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.…
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.

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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

Learn about the different kinds of mower blades and how to maintain them.…