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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

  • 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

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    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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  • Yard-man Tiller Flat Washer for MTD 21AA45M5031 - Part 736-0163

    Transmission assembly diagram

    Tiller Flat Washer

    Part #936-0163

    Replaced by #736-0163

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    Manufacturer substitution
    This part replaces 936-0163. Substitute parts can look different from the original.
    In Stock
    $29.79
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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

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    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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  • Lawn & Garden Equipment Screw for MTD 21AA45M5031 - Part 710-0805A

    Drive system diagram

    Lawn Tractor Hex Bolt

    Part #710-0805

    Replaced by #710-0805A

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    Manufacturer substitution
    This part replaces 710-0805. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.86
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  • Tiller Control Cable for MTD 21AA45M5031 - Part 946-1117

    Drive system diagram

    Tiller Clutch Cable

    Part #746-1117

    Replaced by #946-1117

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    Manufacturer substitution
    This part replaces 746-1117. Substitute parts can look different from the original.
    Check Availability
    $89.15
    6% OFF Phone Price : $95.15Info Icon
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  • Handle Asm-u for MTD 21AA45M5031 - Part 649-0041B-0638

    Handle & tine shield diagram

    Upper Handle Assembly

    Part #649-0041-0638

    Replaced by #649-0041B-0638

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    Manufacturer substitution
    This part replaces 649-0041-0638. Substitute parts can look different from the original.
    In Stock
    $314.90
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  • Tiller Tine Shaft for MTD 21AA45M5031 - Part 611-0021A

    Transmission assembly diagram

    Tiller Tine Shaft

    Part #611-0021

    Replaced by #611-0021A

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    Manufacturer substitution
    This part replaces 611-0021. Substitute parts can look different from the original.
    In Stock
    $161.12
    7% OFF Phone Price : $173.12Info Icon
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  • Lawn & Garden Equipment Hex Nut for MTD 21AA45M5031 - Part 712-0429

    Handle & tine shield diagram

    Lawn & Garden Equipment Hex Nut

    Part #912-0429

    Replaced by #712-0429

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    Manufacturer substitution
    This part replaces 912-0429. Substitute parts can look different from the original.
    In Stock
    $35.39
    14% OFF Phone Price : $41.39Info Icon
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  • Handle Asm-u for MTD 21AA45M5031 - Part 649-0041B-0691

    Handle & tine shield diagram

    Handle Assembly

    Part #649-0041-0691

    Replaced by #649-0041B-0691

    Info Icon
    Manufacturer substitution
    This part replaces 649-0041-0691. Substitute parts can look different from the original.
    In Stock
    $264.30
    $12.00 OFF Phone Price : $276.30Info Icon
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  • Tiller Input Shaft for MTD 21AA45M5031 - Part 711-1349B

    Transmission assembly diagram

    Input Shaft

    Part #711-1349

    Replaced by #711-1349B

    Info Icon
    Manufacturer substitution
    This part replaces 711-1349. Substitute parts can look different from the original.
    In Stock
    $111.14
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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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Fall garden care: to till or not to till? Here’s how to decide

Fall garden care: to till or not to till? Here’s how to decide

Thinking about tilling your garden this fall? Learn the pros and cons of fall tilling, when it makes sense, and how to p…

Read more
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.…

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Tiller common questions

Tiller common questions

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

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