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Murray
Gas Snowblower

Model # 621450X4D Official Murray snow thrower

Here are the diagrams and repair parts for Official Murray 621450X4D snow thrower, as well as links to manuals and error code tables, if available.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 116 parts  |
Knob 57171
#764

Handle diagram

Knob

Part #57171

Replaced by #1501260MA

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Manufacturer substitution
This part replaces 57171. Substitute parts can look different from the original.
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$10.93 | 
15% OFF Phone Price : $12.93
In Stock
Boot Spring 308146
#743

Handle diagram

Boot spring

Part #308146

Replaced by #308146MA

?
Manufacturer substitution
This part replaces 308146. Substitute parts can look different from the original.
$10.97 | 
15% OFF Phone Price : $12.97
In Stock
Bearing 577023
#510

Auger housing diagram

Bearing

Part #577023

Replaced by #577023MA

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Manufacturer substitution
This part replaces 577023. Substitute parts can look different from the original.
$9.59 | 
9% OFF Phone Price : $10.59
In Stock
Scraper 55323
#490

Auger housing diagram

Scraper

Part #55323

Replaced by #55323MA

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Manufacturer substitution
This part replaces 55323. Substitute parts can look different from the original.

Get free shipping with Automatic Reorder

$47.89 | 
11% OFF Phone Price : $53.89
In Stock
Hose Clamp 47345
#114

Frame components diagram

Hose clamp

Part #47345

The manufacturer no longer makes this part, and there's no substitute part

Tire Rim 760713
#660

Wheels diagram

Tire rim

Part #760713

Replaced by #760714MA

?
Manufacturer substitution
This part replaces 760713. Substitute parts can look different from the original.
$25.80 | 
19% OFF Phone Price : $31.80
In Stock
Tubing .25x 335906
#118

Frame components diagram

Tubing .25x

Part #335906

Replaced by #335906MA

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Manufacturer substitution
This part replaces 335906. Substitute parts can look different from the original.
This item is not returnable
$9.71 | 
10% OFF Was : $10.79
In Stock
Bolt, 5/16-1 340720
#871

Chute rod diagram

Bolt, 5/16-1

Part #340720

Replaced by #703225

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Manufacturer substitution
This part replaces 340720. Substitute parts can look different from the original.
This item is not returnable
$6.29 | 
14% OFF Phone Price : $7.29
In Stock
Gas Line 323363
#113

Frame components diagram

Gas line

Part #323363

Replaced by #323363MA

?
Manufacturer substitution
This part replaces 323363. Substitute parts can look different from the original.
This item is not returnable
$14.29
In Stock
Blade 302565
#520-2

Auger housing diagram

Blade

Part #302565

Replaced by #302565MA

?
Manufacturer substitution
This part replaces 302565. Substitute parts can look different from the original.

Get free shipping with Automatic Reorder

$30.58 | 
16% OFF Phone Price : $36.58
In Stock

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

View all

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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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 does my snowblower stop running after a few seconds?

Main causes: dirty carburetor, stale fuel…

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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 engine run rough?

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

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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 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 chute turn?

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

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Why won't my snowblower clear snow well?

Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, …

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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 adjust snowblower engine valve lash

How to adjust snowblower engine valve lash

Adjust the engine valve lash on your snowblower to keep the engine starting and running smoothly.…

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Repair difficulty
Time required
 15 minutes or less
How to adjust snowblower skid shoes

How to adjust snowblower skid shoes

To prevent snowblower auger and shave plate damage, adjust the skid shoes regularly to keep the shave plate ¼-inch high.…

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.…

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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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