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MTD 21AA45M5031 rear-tine tiller Parts

Here are the diagrams and repair parts for MTD 21AA45M5031 rear-tine tiller, as well as links to manuals and error code tables, if available.

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MTD 21AA45M5031 rear-tine tiller
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Browse Parts for 21AA45M5031 Tillers

  • Gear Assembly for MTD 21AA45M5031 - Part 617-0062A

    Transmission assembly diagram

    Gear Assembly

    Part #617-0062

    Replaced by #617-0062A

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    Manufacturer substitution
    This part replaces 617-0062. Substitute parts can look different from the original.
    In Stock
    $160.96
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  • Kmart Tiller Tine Adapter Plate for MTD 21AA45M5031 - Part 784-0160-0637

    Drive system diagram

    Adapter Assembly

    Part #984-0160-0637

    Replaced by #784-0160-0637

    Info Icon
    Manufacturer substitution
    This part replaces 984-0160-0637. Substitute parts can look different from the original.
    In Stock
    $120.16
    9% OFF Phone Price : $132.16Info Icon
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  • Kmart Hex Nut for MTD 21AA45M5031 - Part 912-3066

    Handle & tine shield diagram

    Hex Jam Nut

    Part #712-3066

    Replaced by #912-3066

    Info Icon
    Manufacturer substitution
    This part replaces 712-3066. Substitute parts can look different from the original.
    In Stock
    $34.32
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    Qty
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  • Tiller Tine Input Sprocket Assembly for MTD 21AA45M5031 - Part 617-0060A

    Transmission assembly diagram

    Tiller Tine Input Sprocket Assembly

    Part #617-0060

    Replaced by #617-0060A

    Info Icon
    Manufacturer substitution
    This part replaces 617-0060. Substitute parts can look different from the original.
    In Stock
    $209.91
    5% OFF Phone Price : $221.91Info Icon
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  • Tiller Idler Pulley for MTD 21AA45M5031 - Part 917-0059B

    Transmission assembly diagram

    Tiller Idler Pulley

    Part #617-0059

    Replaced by #917-0059B

    Info Icon
    Manufacturer substitution
    This part replaces 617-0059. Substitute parts can look different from the original.
    In Stock
    $145.85
    8% OFF Phone Price : $157.85Info Icon
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  • Clutch Collar for MTD 21AA45M5031 - Part 717-0853A

    Transmission assembly diagram

    Fork

    Part #717-0853

    Replaced by #717-0853A

    Info Icon
    Manufacturer substitution
    This part replaces 717-0853. Substitute parts can look different from the original.
    In Stock
    $152.02
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    Qty
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  • Craftsman Bracket for MTD 21AA45M5031 - Part 786-0238A

    Transmission assembly diagram

    Gear Bracket

    Part #786-0238

    Replaced by #786-0238A

    Info Icon
    Manufacturer substitution
    This part replaces 786-0238. Substitute parts can look different from the original.
    In Stock
    $30.56
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    Qty
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  • Yard-man Tiller Flat Washer for MTD 21AA45M5031 - Part 736-0163

    Transmission assembly diagram

    Tiller Flat Washer

    Part #936-0163

    Replaced by #736-0163

    Info Icon
    Manufacturer substitution
    This part replaces 936-0163. Substitute parts can look different from the original.
    In Stock
    $29.79
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    Qty
    Plus Item
  • Ryobi Lawn & Garden Equipment Lock Washer for MTD 21AA45M5031 - Part 736-0921

    Handle & tine shield diagram

    Lawn & Garden Equipment Lock Washer

    Part #936-0921

    Replaced by #736-0921

    Info Icon
    Manufacturer substitution
    This part replaces 936-0921. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $8.20
    Minus Item
    Qty
    Plus Item
  • Mtd Tiller Belt Guard for MTD 21AA45M5031 - Part 784-0158B-0691

    Drive system diagram

    Belt Cover

    Part #784-0158A-0691

    Replaced by #784-0158B-0691

    Info Icon
    Manufacturer substitution
    This part replaces 784-0158A-0691. Substitute parts can look different from the original.
    In Stock
    $138.68
    8% OFF Phone Price : $150.68Info Icon
    Minus Item
    Qty
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Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

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Why does my tiller's engine leak oil or gas?

Main causes: leaky engine head gasket, damaged sump gasket, damaged oil drain plug seal, loose or cracked fuel line, lea…

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Why does my tiller's engine run roughly or misfire?

Main causes: dirty carburetor, engine needs tune up, stale gas…

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Why won't my tiller's engine start?

Main causes: carburetor failure, bad gasoline, dirty spark plug, broken recoil starter…

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Why do my tiller's wheels turn but the tines don't?

Main causes: broken shaft clevis pins, transmission failure…

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Why does my tiller turn the soil poorly?

Main causes: damaged tines, broken clevis pins, worn drive belt, faulty transmission, clutch cable problems, improper de…

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Why do my tiller's tines turn but the wheels don't?

Main causes: clutch cable problems, faulty transmission…

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Why won't my tillers wheels or tines turn?

Main causes: worn or broken drive belts, bad transmission, clutch cable problems…

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Most common repair guides to help fix your tillers

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

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How to replace a tiller recoil starter

How to replace a tiller recoil starter

The recoil starter spins the engine when you pull the starter rope, and the rope retracts when released. If the recoil s…

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Repair time and Difficulty

 15 minutes or less

Effective articles & videos to help repair your tillers

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

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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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Find the right carburetor assembly for a Craftsman snowblower, tiller or log splitter

Find the right carburetor assembly for a Craftsman snowblower, tiller or log splitter

This chart will help you find the right carburetor for your Craftsman snowblower, tiller or log splitter.…

Read more
Tiller common questions

Tiller common questions

These frequently asked questions might help you figure out what's wrong with your garden tiller.…

Read more

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