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MTD
Gas Snowblower

Model # 31AS235-722 Official MTD snow thrower

Here are the diagrams and repair parts for Official MTD 31AS235-722 snow thrower, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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Showing 10 of 77 parts  |
Yard Machines Lawn & Garden Equipment Lock Nut, 5/16-18 (replaces 753-05591) 712-04063
#43

Snow thrower diagram

Yard machines lawn & garden equipment lock nut, 5/16-18 (replaces 753-05591)

Part #712-04063

BEST SELLER
This item is not returnable
$4.53 | 
18% OFF Phone Price : $5.53
In Stock
Yard Machines Lawn & Garden Equipment Nut 712-04064
#14

Snow thrower diagram

Yard machines lawn & garden equipment nut

Part #712-04064

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This item is not returnable
$4.49 | 
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Washer 710-1005
#12

Snow thrower diagram

Washer

Part #710-1005

Replaced by #710-0599

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Manufacturer substitution
This part replaces 710-1005. Substitute parts can look different from the original.
BEST SELLER
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$4.91 | 
17% OFF Phone Price : $5.91
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Knob Wing Nut 720-0284
Knob wing nut

Part #720-0284

Replaced by #720-04072A

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Manufacturer substitution
This part replaces 720-0284. Substitute parts can look different from the original.
BEST SELLER
$9.33 | 
10% OFF Phone Price : $10.33
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Primer 7512B1476
#49

Snow thrower diagram

Primer

Part #7512B1476

Replaced by #570682A

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Manufacturer substitution
This part replaces 7512B1476. Substitute parts can look different from the original.
BEST SELLER
$11.79 | 
15% OFF Phone Price : $13.79
In Stock
Yard Machines Lawn & Garden Equipment Bell Washer (replaces 936-0242) 736-0242
#53

Snow thrower diagram

Yard machines lawn & garden equipment bell washer (replaces 936-0242)

Part #736-0242

BEST SELLER
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$6.58 | 
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Sears Lawn Tractor Screw 710-0627
#50

Snow thrower diagram

Sears lawn tractor screw

Part #710-0627

This item is not returnable
$6.47 | 
13% OFF Phone Price : $7.47
Back Order
Lock Washer 736-0119
#55

Snow thrower diagram

Lock washer

Part #736-0119

Replaced by #936-0119

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Manufacturer substitution
This part replaces 736-0119. Substitute parts can look different from the original.
This item is not returnable
$6.05 | 
14% OFF Phone Price : $7.05
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Lawn Tractor Flat Washer 736-0362
#69

Snow thrower diagram

Lawn tractor flat washer

Part #736-0362

This item is not returnable
$6.87 | 
13% OFF Phone Price : $7.87
In Stock
Snowblower Chute Deflector 731-04426A
#56

Snow thrower diagram

Snowblower chute deflector

Part #731-04426A

Replaced by #731-04426C

?
Manufacturer substitution
This part replaces 731-04426A. Substitute parts can look different from the original.
$26.20 | 
19% OFF Phone Price : $32.20
In Stock

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

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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…

Read more

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 throw snow far enough?

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

Read more

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 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 start?

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

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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 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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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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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 replace a snowblower auger drive cable

How to replace a snowblower auger drive cable

A loose or snapped auger drive cable can prevent the auger from rotating. Follow this step-by-step guide to replace the …

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower friction disc

How to replace a snowblower friction disc

The friction disc is one of the components of the drive system. If it's worn or damaged, the snowblower won't self-prope…

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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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