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MTD
Gas Snowblower

Model # 31AS53SF793 Official MTD snow thrower

Here are the diagrams and repair parts for Official MTD 31AS53SF793 snow thrower, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 204 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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Troybilt Snowblower Shear Pin (replaces 738-04124) 738-04124A
#21

Auger & housing diagram

Troybilt snowblower shear pin (replaces 738-04124)

Part #738-04124A

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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 954-04050
#71

Engine/wheel/gear diagram

Snowblower auger drive belt

Part #954-04050

Replaced by #954-04050A

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Manufacturer substitution
This part replaces 954-04050. Substitute parts can look different from the original.
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$22.79 | 
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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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$4.49 | 
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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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Snowblower Steering Control Trigger 731-06113
#58

Handle panel/handles diagram

Snowblower steering control trigger

Part #731-06113

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Lawn & Garden Equipment Belt 954-04260
#56

Engine/wheel/gear 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 Skid Shoe 731-06439
#36

Auger & housing diagram

Snowblower skid shoe

Part #731-06439

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Snowblower Clean-out Tool (replaces 731-2643) 931-2643
#18

Auger & housing diagram

Snowblower clean-out tool (replaces 731-2643)

Part #931-2643

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Symptoms for gas snowblowers

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What should I do about a damaged snowblower tire?

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Main causes: dirty carburetor, stale fuel…

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Why does my snowblower engine run rough?

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

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Why won't my snowblower start?

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect…

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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?

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

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Why doesn't my snowblower auger turn?

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

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How do I tune up my snowblower?

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

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How to replace a snowblower chute control gearbox assembly

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