MTD
Gas Snowblower

Model #31AH553G401 Official MTD gas snowthrower

Here are the diagrams and repair parts for MTD 31AH553G401 gas snowthrower, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

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

    Showing 10 of 190 parts

    Lawn & Garden Equipment Carriage Bolt

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    Lawn & garden equipment carriage bolt

    Part #710-0451
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    MSRP: $6.00
    Snowblower Auger Drive Belt, 3/8 x 35-3/8-in#21

    V-belt/belt cover Diagram

    Belt

    Part #754-0430A
    Replaced by #954-0430C
    ?
    Manufacturer substitution
    This part replaces 754-0430A. Substitute parts can look different from the original.
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    Phone Price: $32.49
    Snowblower Skid Shoe#38

    28" spiral/28" auger housing Diagram

    Skid shoe

    Part #784-5580
    Replaced by #784-5580-0637
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    Manufacturer substitution
    This part replaces 784-5580. Substitute parts can look different from the original.
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    MSRP: $25.00
    Snowblower Shear Bolt

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    Snowblower shear bolt

    Part #710-0890A
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    Lawn Tractor Screw

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    Lawn tractor screw

    Part #710-0599
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    Lawn Mower Handle Knob#12

    Handle/handle panel Diagram

    Knob wing nut

    Part #720-0284
    Replaced by #720-04072A
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    Manufacturer substitution
    This part replaces 720-0284. Substitute parts can look different from the original.
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    Snowblower Auger Shaft Gear#47

    28" spiral/28" auger housing Diagram

    Worm gear

    Part #717-0528
    Replaced by #917-04861
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    This part replaces 717-0528. Substitute parts can look different from the original.
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    Snowblower Flange Bearing#28

    28" spiral/28" auger housing Diagram

    Snowblower flange bearing

    Part #741-0493A
    Replaced by #741-0493C
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    Manufacturer substitution
    This part replaces 741-0493A. Substitute parts can look different from the original.
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    Snowblower Flange Bearing#26

    28" spiral/28" auger housing Diagram

    Bearing

    Part #741-0245
    Replaced by #941-0245
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    This part replaces 741-0245. Substitute parts can look different from the original.
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    Snowblower Electric Starter Extension Cord#4

    Cable guide/extension cord Diagram

    Extension cord

    Part #629-0071
    Replaced by #929-0071B
    ?
    Manufacturer substitution
    This part replaces 629-0071. Substitute parts can look different from the original.
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    Phone Price: $27.47

    Symptoms for gas snowblowers

    Choose a symptom to see related snowblower repairs.

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

    November 20, 2022
    By Lyle Weischwill
    How to replace a snowblower fuel filter

    Replace the fuel filter on your snowblower if it's clogged or damaged.

    Repair difficulty
    Time required
     15 minutes or less
    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

    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.

    December 12, 2022

    How to adjust the snowblower auger control

    By Lyle Weischwill

    This video shows how to adjust a snowblower's auger control.

    December 8, 2022

    How to lubricate a snowblower drive hex shaft video

    By Lyle Weischwill

    This short video shows how to lubricate a snowblower drive hex shaft.

    November 17, 2022

    What are the major parts of a snowblower?

    By Lyle Weischwill

    Learn about major functional parts of your snowblower and when to replace them.