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MTD
Gas Snowblower

Model # 31AS6HEG799 Official MTD snow thrower

Here are the diagrams and repair parts for Official MTD 31AS6HEG799 snow thrower, as well as links to manuals and error code tables, if available.

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  • 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”.

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Showing 10 of 383 parts  |
Lawn & Garden Equipment Cotter Pin, 1/4- To 5/16-in 714-04040
#10

Impeller/spiral/housing, auger diagram

Lawn & garden equipment cotter pin, 1/4- to 5/16-in

Part #714-04040

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Snowblower Auger Clutch Cable 746-04230
Snowblower auger clutch cable

Part #746-04230

Replaced by #946-04230B

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Manufacturer substitution
This part replaces 746-04230. Substitute parts can look different from the original.
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Troybilt Snowblower Shear Pin (replaces 738-04124) 738-04124A
#21

Impeller/spiral/housing, auger diagram

Troybilt snowblower shear pin (replaces 738-04124)

Part #738-04124A

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Belt 754-04050
#56

Wheel/frame cover diagram

Belt

Part #754-04050

Replaced by #256963

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Manufacturer substitution
This part replaces 754-04050. Substitute parts can look different from the original.
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$32.00 | 
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Ace Lawn & Garden Equipment Self-tapping Bolt, 5/16-18 X 3/4-in (replaces 1724491, 1740496, 1909304, 910-1260a, Gw-7101260) 710-1260A
#42

Handle assembly crank 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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Yard Machines Lawn Tractor Flange Nut (replaces 00012173, Wd-129-103) 712-04065
Yard machines lawn tractor flange nut (replaces 00012173, wd-129-103)

Part #712-04065

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Yard Machines Lawn & Garden Equipment Nut 712-04064
Yard machines lawn & garden equipment nut

Part #712-04064

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Shave Plate 790-00118
#35

Impeller/spiral/housing, auger diagram

Shave plate

Part #790-00118

Replaced by #790-00118-0637

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This part replaces 790-00118. Substitute parts can look different from the original.
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Worm Gear 717-0528A
#46

Impeller/spiral/housing, auger diagram

Worm gear

Part #717-0528A

Replaced by #917-04861

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This part replaces 717-0528A. Substitute parts can look different from the original.
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Knob Wing Nut 720-0284
#45

Handle assembly crank diagram

Knob wing nut

Part #720-0284

Replaced by #720-04072A

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This part replaces 720-0284. Substitute parts can look different from the original.
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Why doesn't my snowblower self propel?

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

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

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How do I tune up my snowblower?

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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 does my snowblower stop running after a few seconds?

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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?

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