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Craftsman
Gas Walk-Behind Mower

Model # 917378633 Official Craftsman gas walk-behind lawn mower

Here are the diagrams and repair parts for Official Craftsman 917378633 gas walk-behind 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 104 parts  |
Lock Nut 83923
#45

Main frame diagram

Lock nut

Part #83923

Replaced by #532409149

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Manufacturer substitution
This part replaces 83923. Substitute parts can look different from the original.
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Pipe Fitting 132010
#36

Drive assembly diagram

Pipe fitting

Part #132010

Replaced by #532409149

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Manufacturer substitution
This part replaces 132010. Substitute parts can look different from the original.
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Lawn Mower 22-in Deck Mulching Blade 850973
#56

Main frame diagram

Lawn mower 22-in deck mulching blade

Part #850973

Replaced by #532406713

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This part replaces 850973. Substitute parts can look different from the original.
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Deflector 128797
#22

Main frame diagram

Deflector

Part #128797

Replaced by #413160

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This part replaces 128797. Substitute parts can look different from the original.
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Lawn & Garden Equipment Screw 851084
#53

Main frame diagram

Lawn & garden equipment screw

Part #851084

Replaced by #532435345

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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
#55

Main frame diagram

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

Part #851074

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Lock Nut 751592
#30

Main frame diagram

Lock nut

Part #751592

Replaced by #596322601

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Manufacturer substitution
This part replaces 751592. Substitute parts can look different from the original.
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Lawn Mower Blade Adapter 851514
#57

Main frame diagram

Lawn mower blade adapter

Part #851514

Replaced by #581547901

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This part replaces 851514. Substitute parts can look different from the original.
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Washer 52160
#26

Drive assembly diagram

Washer

Part #52160

Replaced by #596040101

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This part replaces 52160. Substitute parts can look different from the original.
This item is not returnable
$5.11
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Spacer 84920
#36

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 | 
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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 run rough?

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

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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 vibrate a lot?

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

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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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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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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 replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

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

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

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Repair difficulty
Time required
 45 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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Tapping into a new feature in the Search Bar on Sears PartsDirect

Tapping into a new feature in the Search Bar on Sears PartsDirect

Learn about a new feature added to the Search Bar on Sears PartsDirect…

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Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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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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