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MTD
Gas Snowblower

Model # 31A-62BD799 Official MTD snow thrower

Here are the diagrams and repair parts for Official MTD 31A-62BD799 snow thrower, as well as links to manuals and error code tables, if available.

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

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Owner’s manual

Model diagram and schematic

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Showing 10 of 150 parts  |
Lawn & Garden Equipment Cotter Pin, 1/4- To 5/16-in 714-04040
#8

Auger housing diagram

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

Part #714-04040

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Troybilt Snowblower Shear Pin (replaces 738-04124) 738-04124A
#17

Auger housing diagram

Troybilt snowblower shear pin (replaces 738-04124)

Part #738-04124A

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$3.14 | 
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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

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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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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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Lawn & Garden Equipment Belt 954-04260
#64

Drive belt/wheel assembly diagram

Lawn & garden equipment belt

Part #954-04260

Replaced by #490-501-Y005

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Manufacturer substitution
This part replaces 954-04260. Substitute parts can look different from the original.
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Snowblower Clean-out Tool (replaces 731-2643) 931-2643
#14

Auger housing diagram

Snowblower clean-out tool (replaces 731-2643)

Part #931-2643

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Yard-man Snowblower Spring 732-04460
#11

Auger housing diagram

Yard-man snowblower spring

Part #732-04460

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Lawn Tractor Self-tapping Screw, 5/16-18 X 3/4-in (replaces 01008620) 710-04484
Lawn tractor self-tapping screw, 5/16-18 x 3/4-in (replaces 01008620)

Part #710-04484

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Snowblower Wing Knob 920-0284
#12

Handles/upper chute diagram

Snowblower wing knob

Part #920-0284

Replaced by #720-04072A

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Manufacturer substitution
This part replaces 920-0284. Substitute parts can look different from the original.
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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 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 throw snow far enough?

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