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MTD
Gas Snowblower

Model # 993 Official MTD gas snowthrower

Here are the diagrams and repair parts for Official MTD 993 gas snowthrower, 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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ALL PARTS
Showing 10 of 210 parts  |
Ace Lawn & Garden Equipment Self-tapping Bolt, 5/16-18 X 3/4-in (replaces 1724491, 1740496, 1909304, 910-1260a, Gw-7101260) 710-1260A
#81

Blade assembly diagram

Ace lawn & garden equipment self-tapping bolt, 5/16-18 x 3/4-in (replaces 1724491, 1740496, 1909304, 910-1260a, gw-7101260)

Part #710-1260A

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Tap Screw 710-0601
#23

Blade assembly diagram

Tap screw

Part #710-0601

Replaced by #710-1260A

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Manufacturer substitution
This part replaces 710-0601. Substitute parts can look different from the original.
BEST SELLER
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$4.34 | 
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Toro Lawn & Garden Equipment Carriage Bolt (replaces 753-08024, 910-0451) 710-0451
Toro lawn & garden equipment carriage bolt (replaces 753-08024, 910-0451)

Part #710-0451

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$5.42 | 
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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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$6.58 | 
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Lawn Tractor Screw, 1/4-20 X 5/8-in (replaces 910-1652) 710-1652
#22

Wheels diagram

Lawn tractor screw, 1/4-20 x 5/8-in (replaces 910-1652)

Part #710-1652

This item is not returnable
$5.44 | 
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Sears Snowblower Chute Flange Keeper Bracket (replaces 706-15718, 731-0851, 784-0851) 731-0851A
#20

Blade assembly diagram

Sears snowblower chute flange keeper bracket (replaces 706-15718, 731-0851, 784-0851)

Part #731-0851A

This item is not returnable
$5.37 | 
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In Stock
Lawn & Garden Equipment Screw, 3/8-16 X 1-3/4-in 710-0347
#63

Body diagram

Lawn & garden equipment screw, 3/8-16 x 1-3/4-in

Part #710-0347

This item is not returnable
$7.69 | 
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Hex Flange 712-3027
#19

Blade assembly diagram

Hex flange

Part #712-3027

Replaced by #912-3027

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Manufacturer substitution
This part replaces 712-3027. Substitute parts can look different from the original.
This item is not returnable
$5.44 | 
16% OFF Phone Price : $6.44
In Stock
Sears Lawn & Garden Equipment Plastic Plug 721-0325
#61

Blade assembly diagram

Sears lawn & garden equipment plastic plug

Part #721-0325

This item is not returnable
$6.75 | 
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In Stock
Toro Lawn & Garden Equipment Carriage Bolt (replaces 910-0276, Af-44326) 710-0276
#34

Body diagram

Toro lawn & garden equipment carriage bolt (replaces 910-0276, af-44326)

Part #710-0276

This item is not returnable
$5.17 | 
16% OFF Phone Price : $6.17
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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