Gas Walk-Behind Mower

Model # 917377640 Official Craftsman gas walk-behind lawn mower

Here are the diagrams and repair parts for Official Craftsman 917377640 gas walk-behind lawn mower, as well as links to manuals and error code tables, if available.

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917377640 Walk-Behind Mowers
Pipe Fitting 132010
#8

Lawn mower rotary diagram

Pipe fitting

Part #132010

Replaced by #532409149

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This part replaces 132010. Substitute parts can look different from the original.
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Lock Nut 83923
#42

Lawn mower rotary 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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Hex Flange Lock Nut 145212
#33

Lawn mower rotary 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.
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Lawn Mower Wheel Dust Cover 88080
#29

Lawn mower rotary diagram

Lawn mower wheel dust cover

Part #88080

Replaced by #581840401

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This part replaces 88080. Substitute parts can look different from the original.
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Husqvarna Lawn Mower 21-in Deck Mulching Blade (replaces 187183, 33273, 33364, 532159267) 159267
#31

Walk behind mower diagram

Husqvarna lawn mower 21-in deck mulching blade (replaces 187183, 33273, 33364, 532159267)

Part #159267

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Lawn Mower Blade Adapter 851514
#30

Walk behind mower 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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Lawn & Garden Equipment Hinge Screw 88652
#28

Walk behind mower diagram

Lawn & garden equipment hinge screw

Part #88652

Replaced by #532088652

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Manufacturer substitution
This part replaces 88652. Substitute parts can look different from the original.
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Lawn & Garden Equipment Washer (replaces 532851074, 5328510-74) 851074
#32

Walk behind mower diagram

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

Part #851074

Replaced by #532851074

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Manufacturer substitution
This part replaces 851074. Substitute parts can look different from the original.
This item is not returnable
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Lawn Mower Handle 161105X479
#2

Walk behind mower diagram

Lawn mower handle

Part #161105X479

Replaced by #583716401

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Manufacturer substitution
This part replaces 161105X479. Substitute parts can look different from the original.
In Stock
Upstop Bracket 850733X004
#14

Walk behind mower diagram

Upstop bracket

Part #850733X004

Replaced by #532850733

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Manufacturer substitution
This part replaces 850733X004. Substitute parts can look different from the original.
This item is not returnable
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Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

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

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

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

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…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

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 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…

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. …

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…

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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