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Craftsman
Gas Walk-Behind Mower

Model # 917378251 Official Craftsman 22" lawn mower

Here are the diagrams and repair parts for Official Craftsman 917378251 22" 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 117 parts  |
Selector Knob 77865
Selector knob

Part #77865

Replaced by #532701037

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Manufacturer substitution
This part replaces 77865. Substitute parts can look different from the original.
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This item is not returnable
$6.64 | 
13% OFF Phone Price : $7.64
In Stock
Bolt 58714
#3

Main frame diagram

Bolt

Part #58714

Replaced by #532183724

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Manufacturer substitution
This part replaces 58714. Substitute parts can look different from the original.
This item is not returnable
$11.98 | 
14% OFF Phone Price : $13.98
In Stock
Washer 59289
#23

Main frame diagram

Washer

Part #59289

Replaced by #532059289

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Manufacturer substitution
This part replaces 59289. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Lawn Mower Retainer Clip, 4-pack 55015
Lawn mower retainer clip, 4-pack

Part #55015

Replaced by #582934801

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Manufacturer substitution
This part replaces 55015. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Walk-behind Lawn Mower Handle Knob 87692
#4

Main frame diagram

Walk-behind lawn mower handle knob

Part #87692

Replaced by #532087692

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Manufacturer substitution
This part replaces 87692. Substitute parts can look different from the original.
$15.40
In Stock
Bracket, Left 85664
#22

Main frame diagram

Bracket, left

Part #85664

Replaced by #532192983

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Manufacturer substitution
This part replaces 85664. Substitute parts can look different from the original.
$37.31
In Stock
Lawn & Garden Equipment Bearing 77881
#7

Gear case assembly no. 86625 diagram

Lawn & garden equipment bearing

Part #77881

Replaced by #532077881

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Manufacturer substitution
This part replaces 77881. Substitute parts can look different from the original.
$33.31
In Stock
Spacer 84920
#44

Main frame diagram

Spacer

Part #84920

Replaced by #532401629

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Manufacturer substitution
This part replaces 84920. Substitute parts can look different from the original.
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Lawn Tractor Transaxle Wheel Axle Oil Seal 57072
#4

Gear case assembly no. 86625 diagram

Lawn tractor transaxle wheel axle oil seal

Part #57072

Replaced by #532057072

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Manufacturer substitution
This part replaces 57072. Substitute parts can look different from the original.
$8.54
In Stock
Blade 69334
#53

Main frame diagram

Blade

Part #69334

Replaced by #532406713

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Manufacturer substitution
This part replaces 69334. Substitute parts can look different from the original.

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$28.29 | 
17% OFF Phone Price : $34.29
In Stock

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 vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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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 run rough?

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

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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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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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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 rebuild a lawn mower carburetor

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.…

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Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

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.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

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.…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your walk-behind mowers

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Types of walk-behind mower blades video

Types of walk-behind mower blades video

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

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