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MTD
Gas Snowblower

Model # 31AH54TI799 Official MTD snow thrower

Here are the diagrams and repair parts for Official MTD 31AH54TI799 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 231 parts  |
Lawn & Garden Equipment Cotter Pin, 1/4- To 5/16-in 714-04040
Lawn & garden equipment cotter pin, 1/4- to 5/16-in

Part #714-04040

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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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Snowblower Scraper Blade 790-00120-0691
#9

Gear box/auger & housing diagram

Snowblower scraper blade

Part #790-00120-0691

Replaced by #790-00120-0637

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Manufacturer substitution
This part replaces 790-00120-0691. Substitute parts can look different from the original.
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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
#15

Gear box/auger & housing diagram

Toro lawn & garden equipment carriage bolt (replaces 753-08024, 910-0451)

Part #710-0451

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Snowblower Auger Drive Belt, 1/2 X 37-in 954-04195A
#68

Handles/engines diagram

Snowblower auger drive belt, 1/2 x 37-in

Part #954-04195A

Replaced by #490-501-Y080

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Manufacturer substitution
This part replaces 954-04195A. Substitute parts can look different from the original.
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Snowblower Ground Drive Belt, 3/8 X 36-1/8-in (replaces 754-04201a, 954-04201, Oem-754-04201) 954-04201A
#56

Handles/engines diagram

Snowblower ground drive belt, 3/8 x 36-1/8-in (replaces 754-04201a, 954-04201, oem-754-04201)

Part #954-04201A

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Snowblower Clean-out Tool (replaces 731-2643) 931-2643
#30

Gear box/auger & housing diagram

Snowblower clean-out tool (replaces 731-2643)

Part #931-2643

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Yard-man Snowblower Spring 732-04460
#24

Gear box/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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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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Why doesn't my snowblower auger turn?

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