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Craftsman
Gas Walk-Behind Mower

Model # 917377840 Official Craftsman gas walk-behind lawn mower

Here are the diagrams and repair parts for Official Craftsman 917377840 gas walk-behind 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.

Owner’s manual
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Model diagram and schematic

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ALL PARTS
Showing 10 of 261 parts  |
Hex Flange Lock Nut 145212
#24

Wheels/tires/cover diagram

Hex flange lock nut

Part #145212

Replaced by #532409149

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Manufacturer substitution
This part replaces 145212. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Pipe Fitting 132010
#20

Wheels/tires/cover diagram

Pipe fitting

Part #132010

Replaced by #532409149

?
Manufacturer substitution
This part replaces 132010. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Lock Nut 83923
#33

Wheels/tires/cover diagram

Lock nut

Part #83923

Replaced by #532409149

?
Manufacturer substitution
This part replaces 83923. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Bolt.hndl.ye 184568
#39

Engine/housing/handle/bag diagram

Bolt.hndl.ye

Part #184568

Replaced by #532191574

?
Manufacturer substitution
This part replaces 184568. Substitute parts can look different from the original.
BEST SELLER
$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Lawn Mower Handle Knob 180833
#35

Engine/housing/handle/bag diagram

Lawn mower handle knob

Part #180833

Replaced by #583106401

?
Manufacturer substitution
This part replaces 180833. Substitute parts can look different from the original.
This item is not returnable
$5.31 | 
16% OFF Phone Price : $6.31
In Stock
Wheel.9x2.25 184371
#32

Wheels/tires/cover diagram

Wheel.9x2.25

Part #184371

Replaced by #532192622

?
Manufacturer substitution
This part replaces 184371. Substitute parts can look different from the original.
$93.31
In Stock
Lawn & Garden Equipment Washer (replaces 532851074, 5328510-74) 851074
#17

Engine/housing/handle/bag diagram

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

Part #851074

Replaced by #532851074

?
Manufacturer substitution
This part replaces 851074. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Lock Nut 751152
#24

Engine/housing/handle/bag diagram

Lock nut

Part #751152

Replaced by #532191730

?
Manufacturer substitution
This part replaces 751152. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Blade Adapter 183428
#20

Engine/housing/handle/bag diagram

Blade adapter

Part #183428

Replaced by #532186766

?
Manufacturer substitution
This part replaces 183428. Substitute parts can look different from the original.
$32.98 | 
15% OFF Phone Price : $38.98
In Stock
Lawn Mower Selector Spring 188508X004
#43

Wheels/tires/cover diagram

Lawn mower selector spring

Part #188508X004

Replaced by #532188508

?
Manufacturer substitution
This part replaces 188508X004. Substitute parts can look different from the original.
$13.69
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 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…

Read more
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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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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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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