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Craftsman
Gas Walk-Behind Mower

Model # 917370921 Official Craftsman lawn mower

Here are the diagrams and repair parts for Official Craftsman 917370921 lawn mower, as well as links to manuals and error code tables, if available.

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Owner’s manual
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Model diagram and schematic

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Showing 10 of 318 parts  |
Husqvarna Lawn Mower 22-in Deck 3-in-1 Blade 421825
#47

Engine/housing/handle diagram

Husqvarna lawn mower 22-in deck 3-in-1 blade

Part #421825

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Lawn & Garden Equipment Nut 409148
#33

Drive control/gear case/wheels diagram

Lawn & garden equipment nut

Part #409148

Replaced by #532409149

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Manufacturer substitution
This part replaces 409148. Substitute parts can look different from the original.
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Lawn Mower Hex Flange Nut 409149
#57

Drive control/gear case/wheels diagram

Lawn mower hex flange nut

Part #409149

Replaced by #532409149

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Manufacturer substitution
This part replaces 409149. Substitute parts can look different from the original.
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Lawn Mower Clipping Deflector (replaces 419942x418) 419942X428
#38

Engine/housing/handle diagram

Lawn mower clipping deflector (replaces 419942x418)

Part #419942X428

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Blade Adapter 421782
#46

Engine/housing/handle diagram

Blade adapter

Part #421782

Replaced by #581473301

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Lawn & Garden Equipment Screw 851084
#50

Engine/housing/handle diagram

Lawn & garden equipment screw

Part #851084

Replaced by #532435345

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Manufacturer substitution
This part replaces 851084. Substitute parts can look different from the original.
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Lawn & Garden Equipment Washer (replaces 532851074, 5328510-74) 851074
#48

Engine/housing/handle diagram

Lawn & garden equipment washer (replaces 532851074, 5328510-74)

Part #851074

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Lawn Mower Zone Control Cable (replaces 532438392) 438392
#2

Engine/housing/handle diagram

Lawn mower zone control cable (replaces 532438392)

Part #438392

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Lawn Mower Wheel, 8 X 1.75-in 400249X460
#40

Drive control/gear case/wheels diagram

Lawn mower wheel, 8 x 1.75-in

Part #400249X460

Replaced by #583733801

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This part replaces 400249X460. Substitute parts can look different from the original.
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Drive Pawl 404845
#31

Drive control/gear case/wheels diagram

Drive pawl

Part #404845

Replaced by #532404845

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Manufacturer substitution
This part replaces 404845. Substitute parts can look different from the original.
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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.…

Read more
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.…

Read more
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.…

Read more
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.

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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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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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