Gas Snowblower

Model # 31AE640F062 Official MTD gas snowthrower

Here are the diagrams and repair parts for Official MTD 31AE640F062 gas snowthrower, as well as links to manuals and error code tables, if available.

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31AE640F062 Snowblowers
Shave Plate 784-5581A
#33

Gear/housing/spiral diagram

Shave plate

Part #784-5581A

Replaced by #790-00120-0637

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Manufacturer substitution
This part replaces 784-5581A. Substitute parts can look different from the original.
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$36.99
14% OFF Phone Price : $42.99
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Skid Shoe 784-5580
#30

Gear/housing/spiral diagram

Skid shoe

Part #784-5580

Replaced by #784-5580-0637

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Manufacturer substitution
This part replaces 784-5580. Substitute parts can look different from the original.
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Get free shipping with Automatic Reorder

$22.25
21% OFF Phone Price : $28.25
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Shave Plate 784-5579A
#33A

Gear/housing/spiral diagram

Shave plate

Part #784-5579A

Replaced by #790-00121-0637

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Manufacturer substitution
This part replaces 784-5579A. Substitute parts can look different from the original.
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$40.82
13% OFF Phone Price : $46.82
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Knob Wing Nut 720-0284
#57

Handle/panel/shift rod/chute diagram

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.
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$9.33
10% OFF Phone Price : $10.33
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Yard Machines Lawn & Garden Equipment Bell Washer (replaces 936-0242) 736-0242
Yard machines lawn & garden equipment bell washer (replaces 936-0242)

Part #736-0242

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This item is not returnable
$6.58
13% OFF Phone Price : $7.58
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Starter Kit OEM-390-987
#27

Belt/auger pulley-e640f,e660g,e6c0f diagram

Starter kit

Part #OEM-390-987

Replaced by #33329H

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Manufacturer substitution
This part replaces OEM-390-987. Substitute parts can look different from the original.
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$199.00
6% OFF Phone Price : $211.00
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Worm Gear 717-0528
#7

Reducer housing/spiral axle diagram

Worm gear

Part #717-0528

Replaced by #917-04861

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Manufacturer substitution
This part replaces 717-0528. Substitute parts can look different from the original.
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$47.11
11% OFF Phone Price : $53.11
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Sears Lawn Tractor Screw 710-0627
Sears lawn tractor screw

Part #710-0627

This item is not returnable
$6.47
13% OFF Phone Price : $7.47
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Extension Cord 629-0071
Extension cord

Part #629-0071

Replaced by #929-0071B

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Manufacturer substitution
This part replaces 629-0071. Substitute parts can look different from the original.
$30.18
17% OFF Phone Price : $36.18
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Snowblower Flange Bearing 741-0493A
#40

Gear/housing/spiral diagram

Snowblower flange bearing

Part #741-0493A

Replaced by #741-0493C

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Manufacturer substitution
This part replaces 741-0493A. Substitute parts can look different from the original.
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Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

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

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

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

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

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

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

Main causes: dirty carburetor, stale fuel…

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

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

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 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 …

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…

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.

Snowblower won’t start – 4 easy DIY fixes

Snowblower won’t start – 4 easy DIY fixes

Find easy DIY tips to fix your snowblower when it won't start…

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.…

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.…