Troybilt
Gas Snowblower

Model #31AH7T74101 Troybilt snow thrower

Here are the diagrams and repair parts for Troybilt 31AH7T74101 snow thrower, as well as links to manuals and error code tables, if available.

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Owner’s manual

    Showing 10 of 249 parts

    Lawn & Garden Equipment Carriage Bolt

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    Lawn & garden equipment carriage bolt

    Part #710-0451
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    $3.49 | 
    27% OFF 
    MSRP: $4.80
    Snowblower Auger Drive Belt, 3/8 x 35-3/8-in#19

    Engine shroud assembly Diagram

    Snowblower auger drive belt

    Part #754-0430B
    Replaced by #954-0430C
    ?
    Manufacturer substitution
    This part replaces 754-0430B. Substitute parts can look different from the original.
    BEST SELLER
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    $25.96
    Lawn Tractor Screw

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    Lawn tractor screw

    Part #710-0599
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    $3.69
    Lawn Mower Handle Knob#12

    Shift arm assembly Diagram

    Knob wing nut

    Part #720-0284
    Replaced by #720-04072A
    ?
    Manufacturer substitution
    This part replaces 720-0284. Substitute parts can look different from the original.
    BEST SELLER
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    In Stock
    $5.79 | 
    32% OFF 
    MSRP: $8.50
    Snowblower Flange Bearing#40

    Gear assembly Diagram

    Snowblower flange bearing

    Part #741-0493A
    Replaced by #741-0493C
    ?
    Manufacturer substitution
    This part replaces 741-0493A. Substitute parts can look different from the original.
    BEST SELLER
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    In Stock
    $4.27
    Snowblower Shear Bolt#42

    Gear assembly Diagram

    Snowblower shear bolt

    Part #710-0890A
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    $2.39 | 
    18% OFF 
    MSRP: $2.90
    Lawn & Garden Equipment Bell Washer

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    Lawn & garden equipment bell washer

    Part #736-0242
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    $6.49
    Snowblower Flange Bearing#29

    Gear assembly Diagram

    Bearing

    Part #741-0245
    Replaced by #941-0245
    ?
    Manufacturer substitution
    This part replaces 741-0245. Substitute parts can look different from the original.
    BEST SELLER
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    $12.49
    Snowblower Scraper Blade#33

    Gear assembly Diagram

    Shave plate

    Part #784-5582A
    Replaced by #790-00118-0637
    ?
    Manufacturer substitution
    This part replaces 784-5582A. Substitute parts can look different from the original.
    BEST SELLER
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    $41.09
    Lawn & Garden Equipment Lock Washer

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    Lock washer

    Part #736-0119
    Replaced by #936-0119
    ?
    Manufacturer substitution
    This part replaces 736-0119. Substitute parts can look different from the original.
    BEST SELLER
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    In Stock
    $5.99

    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 common to all snowblowers

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

    June 29, 2022

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