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MTD 21AA414A729 rear-tine tiller Parts

Here are the diagrams and repair parts for MTD 21AA414A729 rear-tine tiller, as well as links to manuals and error code tables, if available.

MTD 21AA414A729 rear-tine tiller
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Browse Parts for 21AA414A729 Tillers

  • Lawn & Garden Equipment Flat Washer for MTD 21AA414A729 - Part 936-0256

    Wheels/tine diagram

    Washer

    Part #736-0256

    Replaced by #936-0256

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    Manufacturer substitution
    This part replaces 736-0256. Substitute parts can look different from the original.
    In Stock
    $34.68
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  • Mtd Lawn & Garden Equipment Lock Washer for MTD 21AA414A729 - Part 936-0119

    Wheels/tine diagram

    Lock Washer

    Part #736-0119

    Replaced by #936-0119

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    Manufacturer substitution
    This part replaces 736-0119. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.16
    12% OFF Phone Price : $8.16Info Icon
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  • Agri-fab Log Splitter Hex Jam Nut for MTD 21AA414A729 - Part 712-3008

    Tine shield/handle diagram

    Hex Jam Nut

    Part #712-3008

    Replaced by #712-3008

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    Manufacturer substitution
    This part replaces 712-3008. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
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  • Lawn & Garden Equipment Shoulder Screw for MTD 21AA414A729 - Part 938-0849

    Tine shield/handle diagram

    Shoulder Screw

    Part #738-0849

    Replaced by #938-0849

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    Manufacturer substitution
    This part replaces 738-0849. Substitute parts can look different from the original.
    In Stock
    $18.49
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  • Tiller Depth Stake for MTD 21AA414A729 - Part 786-0120-0637

    Tine shield/handle diagram

    Depth Bar Assembly

    Part #786-0120

    Replaced by #786-0120-0637

    Info Icon
    Manufacturer substitution
    This part replaces 786-0120. Substitute parts can look different from the original.
    In Stock
    $101.00
    11% OFF Phone Price : $113.00Info Icon
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  • Tiller Drive Belt for MTD 21AA414A729 - Part 954-0438

    Wheels/tine diagram

    V-belt

    Part #754-0438

    Replaced by #954-0438

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    Manufacturer substitution
    This part replaces 754-0438. Substitute parts can look different from the original.
    Get free shipping with Automatic Reorder
    In Stock
    $65.95
    8% OFF Phone Price : $71.95Info Icon
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  • Tiller Tine Shaft Oil Seal for MTD 21AA414A729 - Part 921-0378

    Gear case diagram

    Shaft Seal

    Part #721-0378

    Replaced by #921-0378

    Info Icon
    Manufacturer substitution
    This part replaces 721-0378. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $25.63
    19% OFF Phone Price : $31.63Info Icon
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  • Shield for MTD 21AA414A729 - Part 786-0090A-0637

    Tine shield/handle diagram

    Shield

    Part #786-0090

    Replaced by #786-0090A-0637

    Info Icon
    Manufacturer substitution
    This part replaces 786-0090. Substitute parts can look different from the original.
    In Stock
    $52.18
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  • #50 Chain 5/ for MTD 21AA414A729 - Part 913-0226

    Gear case diagram

    Chain

    Part #713-0226

    Replaced by #913-0226

    Info Icon
    Manufacturer substitution
    This part replaces 713-0226. Substitute parts can look different from the original.
    In Stock
    $191.46
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  • Tiller Tire for MTD 21AA414A729 - Part 734-1796A

    Wheels/tine diagram

    Super Tire

    Part #734-1796

    Replaced by #734-1796A

    Info Icon
    Manufacturer substitution
    This part replaces 734-1796. Substitute parts can look different from the original.
    In Stock
    $154.15
    7% OFF Phone Price : $166.15Info Icon
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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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