MTD
Gas Snowblower

Model # 31AH6LKH722 Official MTD snow thrower

Here are the diagrams and repair parts for Official MTD 31AH6LKH722 snow thrower, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 219 parts  |

Shear Pin 738-04124
#20

Auger & housing/chute diagram

Shear pin

Part #738-04124

Replaced by #738-04124A

?
Manufacturer substitution
This part replaces 738-04124. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.99
25% OFF Phone Price : $3.99
Back Order
Yard Machines Lawn & Garden Equipment Lock Nut, 5/16-18 (replaces 753-05591) 712-04063
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
Belt 754-04050
#54

Drive/wheels diagram

Belt

Part #754-04050

Replaced by #256963

?
Manufacturer substitution
This part replaces 754-04050. Substitute parts can look different from the original.
BEST SELLER

Get free shipping with Automatic Reorder

$32.96
15% OFF Phone Price : $38.96
In Stock
Shave Plate 790-00120
#51

Auger & housing/chute diagram

Shave plate

Part #790-00120

Replaced by #790-00120-0637

?
Manufacturer substitution
This part replaces 790-00120. Substitute parts can look different from the original.
BEST SELLER
$35.94
14% OFF Phone Price : $41.94
In Stock
Yard Machines Lawn & Garden Equipment Nut 712-04064
Yard machines lawn & garden equipment nut

Part #712-04064

BEST SELLER
This item is not returnable
$4.49
18% OFF Phone Price : $5.49
In Stock
Yard Machines Lawn Tractor Flange Nut (replaces 00012173, Wd-129-103) 712-04065
#9

Auger & housing/chute diagram

Yard machines lawn tractor flange nut (replaces 00012173, wd-129-103)

Part #712-04065

BEST SELLER
This item is not returnable
$5.27
16% OFF Phone Price : $6.27
In Stock
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

BEST SELLER
This item is not returnable
$5.42
16% OFF Phone Price : $6.42
In Stock
Shave Plate 790-00118
#51A

Auger & housing/chute diagram

Shave plate

Part #790-00118

Replaced by #790-00118-0637

?
Manufacturer substitution
This part replaces 790-00118. Substitute parts can look different from the original.
BEST SELLER
$41.50
13% OFF Phone Price : $47.50
In Stock
Worm Gear 717-0528A
#56

Auger & housing/chute diagram

Worm gear

Part #717-0528A

Replaced by #917-04861

?
Manufacturer substitution
This part replaces 717-0528A. Substitute parts can look different from the original.
BEST SELLER
$47.16
11% OFF Phone Price : $53.16
In Stock
Bearing 741-0919
#49

Drive/wheels diagram

Bearing

Part #741-0919

Replaced by #941-0919B

?
Manufacturer substitution
This part replaces 741-0919. Substitute parts can look different from the original.
BEST SELLER
$19.05
10% OFF Phone Price : $21.05
In Stock

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

Main causes: punctured tire, damaged rim…

Main causes: dirty carburetor, stale fuel…

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

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

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

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

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

Repair guides for gas snowblowers

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

How to replace a snowblower fuel filter

How to replace a snowblower fuel filter

Replace the fuel filter on your snowblower if it's clogged or damaged.…

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
How to replace a snowblower chute control gearbox assembly

How to replace a snowblower chute control gearbox assembly

Replace the chute control gearbox on your snowblower if it's stripped or damaged.…

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.…

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.…