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Craftsman
Gas Snowblower

Model # 917885521 Official Craftsman snow thrower

Here are the diagrams and repair parts for Official Craftsman 917885521 snow thrower, as well as links to manuals and error code tables, if available.

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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.

Model diagram and schematic

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ALL PARTS
Showing 10 of 229 parts  |
Lawn & Garden Equipment Lock Nut 73800400
#19

Auger housing/impeller diagram

Lawn & garden equipment lock nut

Part #73800400

Replaced by #582478602

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Manufacturer substitution
This part replaces 73800400. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.64 | 
27% OFF Phone Price : $3.64
In Stock
Snowblower Auger Drive Belt 408007
#15

Chassis/engine/pulleys diagram

Snowblower auger drive belt

Part #408007

Replaced by #532408007

?
Manufacturer substitution
This part replaces 408007. Substitute parts can look different from the original.
BEST SELLER

Get free shipping with Automatic Reorder

$39.88 | 
13% OFF Phone Price : $45.88
In Stock
Nut.flange.5 155377
Nut.flange.5

Part #155377

Replaced by #596039201

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Manufacturer substitution
This part replaces 155377. Substitute parts can look different from the original.
This item is not returnable
$5.11
In Stock
Discharge Base 175322
#13

Auger housing/impeller diagram

Discharge base

Part #175322

Replaced by #585056901

?
Manufacturer substitution
This part replaces 175322. Substitute parts can look different from the original.
This item is not returnable
$13.31 | 
13% OFF Phone Price : $15.31
In Stock
Lock Washer 10040500
Lock washer

Part #10040500

Replaced by #596238801

?
Manufacturer substitution
This part replaces 10040500. Substitute parts can look different from the original.
This item is not returnable
$5.11
In Stock
Bottom Pan 410877
#46

Chassis/engine/pulleys diagram

Bottom pan

Part #410877

Replaced by #532410877

?
Manufacturer substitution
This part replaces 410877. Substitute parts can look different from the original.
$26.64
In Stock
Traction Spring 180926
#25

Handles diagram

Traction spring

Part #180926

Replaced by #532180926

?
Manufacturer substitution
This part replaces 180926. Substitute parts can look different from the original.
This item is not returnable
$10.26
In Stock
Snowblower Hex Screw 74780426
#49

Auger housing/impeller diagram

Snowblower hex screw

Part #74780426

Replaced by #596322101

?
Manufacturer substitution
This part replaces 74780426. Substitute parts can look different from the original.
This item is not returnable
$5.11
In Stock
Snowblower Flange Bushing 407769
#33

Auger housing/impeller diagram

Snowblower flange bushing

Part #407769

Replaced by #532407769

?
Manufacturer substitution
This part replaces 407769. Substitute parts can look different from the original.
$13.69
In Stock
Lawn & Garden Equipment Shoulder Screw 184471
Lawn & garden equipment shoulder screw

Part #184471

Replaced by #594975601

?
Manufacturer substitution
This part replaces 184471. Substitute parts can look different from the original.
This item is not returnable
$37.31
In Stock

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

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What should I do about a damaged snowblower tire?

Main causes: punctured tire, damaged rim…

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Why does my snowblower stop running after a few seconds?

Main causes: dirty carburetor, stale fuel…

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Why does my snowblower engine run rough?

Main causes: dirty carburetor, clogged fuel filter, dirty spark plug, incorrect valve lash, leaky engine gaskets…

Read more

Why won't my snowblower start?

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect…

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Why won't my snowblower chute turn?

Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly…

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Why doesn't my snowblower self propel?

Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…

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Why won't my snowblower throw snow far enough?

Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…

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Why doesn't my snowblower auger turn?

Main causes: broken shear pins, worn or loose auger drive belt, auger drive cable failure, damaged auger, bad gear case…

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How do I tune up my snowblower?

Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the b…

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Repair guides for gas snowblowers

These step-by-step repair guides will help you safely fix what’s broken on your snowblower.

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How to replace a snowblower fuel filter

How to replace a snowblower fuel filter

Replace the fuel filter on your snowblower if it's clogged or damaged.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower shave plate

How to replace a snowblower shave plate

Follow the 7 easy steps in this repair guide/video to replace a worn out shave plate on your snowblower.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower chute control gearbox assembly

How to replace a snowblower chute control gearbox assembly

Replace the chute control gearbox on your snowblower if it's stripped or damaged.…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your snowblowers

Use the advice and tips in these articles and videos to get the most out of your snowblower.

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How to make your snowblower last longer

How to make your snowblower last longer

Learn the steps to take to adjust and maintain your snowblower so it lasts longer.…

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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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