MTD
Gas Snowblower

Model #31AM32AD799 MTD snow thrower

Here are the diagrams and repair parts for MTD 31AM32AD799 snow thrower, as well as links to manuals and error code tables, if available.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

    Showing 10 of 242 parts

    Snowblower Shear Pin#42

    Auger and housing Diagram

    Snowblower shear pin

    Part #738-04124A
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    MSRP: $2.90
    Lawn & Garden Equipment Cotter Pin, 1/4- to 5/16-in

    See All Related Diagrams

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

    Part #714-04040
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    MSRP: $5.20
    Lawn & Garden Equipment Lock Nut, 5/16-18#20

    Auger and housing Diagram

    Lawn & garden equipment lock nut, 5/16-18

    Part #712-04063
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    MSRP: $4.30
    Lawn & Garden Equipment Engine Spark Plug#58

    Engine (model zs365-sua) Diagram

    Spark plug

    Part #751-10292
    Replaced by #951-10292A
    ?
    Manufacturer substitution
    This part replaces 751-10292. Substitute parts can look different from the original.
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    Lawn & Garden Equipment Nut

    See All Related Diagrams

    Lawn & garden equipment nut

    Part #712-04064
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    MSRP: $3.50
    Snowblower Wheel Assembly, 10 x 4-in#33

    Transmission/handle Diagram

    Wheel

    Part #634-04282A
    Replaced by #934-04282B
    ?
    Manufacturer substitution
    This part replaces 634-04282A. Substitute parts can look different from the original.
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    MSRP: $61.00
    Lawn Tractor Flange Nut#21

    Auger and housing Diagram

    Lawn tractor flange nut

    Part #712-04065
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    MSRP: $4.10
    Snowblower Auger Drive Belt, 3/8 x 27-1/8-in#48

    Transmission/handle Diagram

    Snowblower auger drive belt

    Part #754-04014
    Replaced by #954-04014
    ?
    Manufacturer substitution
    This part replaces 754-04014. Substitute parts can look different from the original.
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    MSRP: $25.00
    Lawn & Garden Equipment Engine Fuel Filter#116

    Engine (model zs365-sua) Diagram

    Fuel tank

    Part #751-10651
    Replaced by #951-10651
    ?
    Manufacturer substitution
    This part replaces 751-10651. Substitute parts can look different from the original.
    BEST SELLER
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    MSRP: $15.00
    Snowblower Ground Drive Belt, 3/8 x 43-3/16-in#47

    Transmission/handle Diagram

    Snowblower ground drive belt

    Part #754-04013
    Replaced by #954-04013
    ?
    Manufacturer substitution
    This part replaces 754-04013. Substitute parts can look different from the original.
    BEST SELLER
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    $13.49 | 
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    MSRP: $17.00

    Symptoms for gas snowblowers

    Choose a symptom to see related snowblower repairs.

    Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the belts
    Main causes: punctured tire, damaged rim
    Main causes: dirty carburetor, clogged fuel filter, dirty spark plug, incorrect valve lash, leaky engine gaskets
    Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems
    Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect valve lash
    Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, auger cable problems
    Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground, engine problems
    Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly

    Repair guides for gas snowblowers

    These step-by-step repair guides will help you safely fix what’s broken on your snowblower.

    December 1, 2015
    By Lyle Weischwill
    How to rebuild a snowblower carburetor

    Rebuild the carburetor on your snowblower if the engine isn't getting fuel.

    Repair difficulty
    Time required
     45 minutes or less
    How to replace a snowblower 4-way chute control assembly

    Replace the 4-way chute control assembly on your snowblower if it’s damaged.

    Repair difficulty
    Time required
     30 minutes or less
    December 1, 2015
    By Lyle Weischwill
    How to replace a snowblower stop switch

    Replace the stop switch on your snowblower if your engine won't start.

    Repair difficulty
    Time required
     15 minutes or less

    Articles and videos for gas snowblowers

    Use the advice and tips in these articles and videos to get the most out of your snowblower.

    December 6, 2020

    Snowblower common questions

    By Sears PartsDirect staff

    Find answers to questions many people ask about snowblowers.

    October 1, 2019

    How to tune up a snowblower video

    By Sears PartsDirect staff

    Get an overview of the main steps in a snowblower tune-up and click to videos with more details.

    November 1, 2014

    How to replace snowblower skid shoes video

    By Sears PartsDirect staff

    Learn how to replace a worn skid shoe on a snowblower, before the shave plate can be damaged.