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MTD 31AS3DDE729 snow thrower

MTD 31AS3DDE729 snow thrower Parts

Here are the diagrams and repair parts for MTD 31AS3DDE729 snow thrower, as well as links to manuals and error code tables, if available.

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Browse Parts for 31AS3DDE729 Snowblowers

  • Yard Machines Lawn Mower Handle Knob for MTD 31AS3DDE729 - Part 720-04072A

    Handle/drive 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.
    In Stock
    $11.23
    15% OFF Phone Price : $13.23Info Icon
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  • Mtd Snowblower Clean-out Tool for MTD 31AS3DDE729 - Part 931-2643

    Auger & housing/chute diagram

    Clean-out Tool

    Part #731-2643

    Replaced by #931-2643

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    Manufacturer substitution
    This part replaces 731-2643. Substitute parts can look different from the original.
    Get free shipping with Automatic Reorder
    In Stock
    $30.80
    16% OFF Phone Price : $36.80Info Icon
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  • Snowblower Chute And Deflector for MTD 31AS3DDE729 - Part 984-04037

    Auger & housing/chute diagram

    Chute Assembly

    Part #684-04037

    Replaced by #984-04037

    Info Icon
    Manufacturer substitution
    This part replaces 684-04037. Substitute parts can look different from the original.
    In Stock
    $73.73
    30% OFF Was : $106.00Info Icon
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  • Snowblower Handle Tab for MTD 31AS3DDE729 - Part 990-00053

    Handle/drive diagram

    Tab Handle

    Part #790-00053

    Replaced by #990-00053

    Info Icon
    Manufacturer substitution
    This part replaces 790-00053. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $12.56
    14% OFF Phone Price : $14.56Info Icon
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    Qty
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  • Snowblower Drive Sprocket for MTD 31AS3DDE729 - Part 917-04073A

    Handle/drive diagram

    Gear

    Part #717-04073A

    Replaced by #917-04073A

    Info Icon
    Manufacturer substitution
    This part replaces 717-04073A. Substitute parts can look different from the original.
    In Stock
    $87.00
    Minus Item
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    Plus Item
  • Housing for MTD 31AS3DDE729 - Part 731-05359

    Handle/drive diagram

    Housing

    Part #731-05359

    The manufacturer no longer makes this part, and there's no substitute part

  • Spacer for MTD 31AS3DDE729 - Part 750-04568

    Handle/drive diagram

    Spacer

    Part #750-04568

    The manufacturer no longer makes this part, and there's no substitute part

  • Snowblower Auger Drive Cable for MTD 31AS3DDE729 - Part 746-04246

    Handle/drive diagram

    Snowblower Auger Drive Cable

    Part #746-04246

    The manufacturer no longer makes this part, and there's no substitute part

  • Housing for MTD 31AS3DDE729 - Part 731-05358

    Handle/drive diagram

    Housing

    Part #731-05358

    The manufacturer no longer makes this part, and there's no substitute part

  • Lawn Mower Control Arm for MTD 31AS3DDE729 - Part 782-7596A

    Handle/drive diagram

    Lawn Mower Control Arm

    Part #782-7596A

    The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your snowblowers

Choose a symptom to see related snowblower repairs.

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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 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…

Read more

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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Why does my snowblower stop running after a few seconds?

Main causes: dirty carburetor, stale fuel…

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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 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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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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Repair guides for gas snowblowers

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

View all
How to adjust snowblower skid shoes

How to adjust snowblower skid shoes

To prevent snowblower auger and shave plate damage, adjust the skid shoes regularly to keep the shave plate ¼-inch high.…

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Repair time and Difficulty

 15 minutes or less
How to rebuild a snowblower carburetor

How to rebuild a snowblower carburetor

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

Read more

Repair time and Difficulty

 45 minutes or less
How to replace a snowblower 4-way chute control assembly

How to replace a snowblower 4-way chute control assembly

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

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Repair time and Difficulty

 30 minutes or less

Effective articles & videos to help repair your snowblowers

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

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Snowblower won’t start: 4 easy DIY fixes

Snowblower won’t start: 4 easy DIY fixes

Find easy DIY tips to fix your snowblower when it won't start…

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Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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