Murray
Gas Snowblower

Model # 620301X4B Official Murray snow thrower

Here are the diagrams and repair parts for Official Murray 620301X4B snow thrower, 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 116 parts  |

1/4-20 Hex N 780029
#489

Auger housing diagram

1/4-20 hex n

Part #780029

Replaced by #703232

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Manufacturer substitution
This part replaces 780029. Substitute parts can look different from the original.
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This item is not returnable
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Boot Spring 308146
#743

Handle assembly diagram

Boot spring

Part #308146

Replaced by #308146MA

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Manufacturer substitution
This part replaces 308146. Substitute parts can look different from the original.
$10.97
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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
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Blade 302565
#520-02

Auger housing diagram

Blade

Part #302565

Replaced by #302565MA

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

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$30.58
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Bolt, 5/16-1 340720
#871

Chute rod assembly 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
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Snowblower Formed Washer 311936
#763

Handle assembly diagram

Snowblower formed washer

Part #311936

Replaced by #311936MA

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Manufacturer substitution
This part replaces 311936. Substitute parts can look different from the original.
This item is not returnable
$12.71
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Bracket 331126
#487

Auger housing diagram

Bracket

Part #331126

Replaced by #331126MA

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Manufacturer substitution
This part replaces 331126. Substitute parts can look different from the original.
This item is not returnable
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Lock Washer 71060
#873

Chute rod assembly diagram

Lock washer

Part #71060

Replaced by #703116

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Manufacturer substitution
This part replaces 71060. Substitute parts can look different from the original.
This item is not returnable
$5.79
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Nut 302635
Nut

Part #302635

Replaced by #15X143MA

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Manufacturer substitution
This part replaces 302635. Substitute parts can look different from the original.
This item is not returnable
$8.49
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Sf Brng & Pl 583459
#530

Auger housing diagram

Sf brng & pl

Part #583459

Replaced by #583459MA

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Manufacturer substitution
This part replaces 583459. Substitute parts can look different from the original.
This item is not returnable
$36.49
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Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

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

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

Main causes: dirty carburetor, stale fuel…

Main causes: punctured tire, damaged rim…

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

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

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

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

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

Repair guides for gas snowblowers

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

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.…

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.…

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.…

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.

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

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

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