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MTD
Gas Snowblower

Model # 31AM6BHF793 Official MTD gas snowthrower

Here are the diagrams and repair parts for Official MTD 31AM6BHF793 gas snowthrower, 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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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 203 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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Snowblower Auger Clutch Cable (replaces 946-04230a) 946-04230B
#28

Transmission diagram

Snowblower auger clutch cable (replaces 946-04230a)

Part #946-04230B

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Snowblower Shear Pin Kit, 1/4 X 1-1/2-in OEM-738-04124
Snowblower shear pin kit, 1/4 x 1-1/2-in

Part #OEM-738-04124

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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 Auger Drive Belt (replaces 2705614, 954-04050a) 256963
#19

Engine drive diagram

Snowblower auger drive belt (replaces 2705614, 954-04050a)

Part #256963

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$32.00 | 
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Snowblower Auger Drive Belt, 1/2 X 35-1/4-in 954-04050A
#19

Engine drive diagram

Snowblower auger drive belt, 1/2 x 35-1/4-in

Part #954-04050A

Replaced by #256963

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Manufacturer substitution
This part replaces 954-04050A. Substitute parts can look different from the original.
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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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Yard Machines Lawn & Garden Equipment Nut 712-04064
Yard machines lawn & garden equipment nut

Part #712-04064

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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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Lawn Mower Ground Drive Belt 490-501-M005
#20

Engine drive diagram

Lawn mower ground drive belt

Part #490-501-M005

Replaced by #490-501-Y005

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Manufacturer substitution
This part replaces 490-501-M005. Substitute parts can look different from the original.
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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 engine run rough?

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Why won't my snowblower start?

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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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