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Troybilt 21A-634A766 tiller Parts

Here are the diagrams and repair parts for Troybilt 21A-634A766 tiller, as well as links to manuals and error code tables, if available.

Troybilt 21A-634A766 tiller
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Browse Parts for 21A-634A766 Tillers

  • Bumper for Troybilt 21A-634A766 - Part 749-04193-0637

    Bumper assembly diagram

    Bumper

    Part #749-04193

    Replaced by #749-04193-0637

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    Manufacturer substitution
    This part replaces 749-04193. Substitute parts can look different from the original.
    In Stock
    $77.58
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  • Troybilt Tiller Washer for Troybilt 21A-634A766 - Part 736-04258

    Shim and wheel shaft diagram

    Shim

    Part #GW-1166-4

    Replaced by #736-04258

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    Manufacturer substitution
    This part replaces GW-1166-4. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.29
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  • Holder Assembly for Troybilt 21A-634A766 - Part 686-04066-0638

    Wheel and tire assembly diagram

    Tine Holder

    Part #1915075

    Replaced by #686-04066-0638

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    Manufacturer substitution
    This part replaces 1915075. Substitute parts can look different from the original.
    In Stock
    $107.47
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  • Lawn & Garden Equipment Flat Washer for Troybilt 21A-634A766 - Part 936-3008

    Transmission housing diagram

    Washer

    Part #736-3008

    Replaced by #936-3008

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    Manufacturer substitution
    This part replaces 736-3008. Substitute parts can look different from the original.
    In Stock
    $10.46
    16% OFF Phone Price : $12.46Info Icon
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  • Depth Drive Bar for Troybilt 21A-634A766 - Part 786-04104

    Tine hood/transmission diagram

    Drag Bar

    Part #GW-55015

    Replaced by #786-04104

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    Manufacturer substitution
    This part replaces GW-55015. Substitute parts can look different from the original.
    In Stock
    $47.64
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  • Lawn Tractor Cable Tie for Troybilt 21A-634A766 - Part 726-0178

    Cable assembly / handlebars diagram

    Lawn & Garden Equipment Cable Tie

    Part #725-0157

    Replaced by #726-0178

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    Manufacturer substitution
    This part replaces 725-0157. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $25.35
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  • Cover Bearing for Troybilt 21A-634A766 - Part 918-04435

    Transmission housing diagram

    Cover Bearing

    Part #718-04008

    Replaced by #918-04435

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    Manufacturer substitution
    This part replaces 718-04008. Substitute parts can look different from the original.
    In Stock
    $32.89
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  • Tiller Bolo Tine, Right for Troybilt 21A-634A766 - Part 742-04226-0637

    Wheel and tire assembly diagram

    Bolo Tine

    Part #GW-50049-01

    Replaced by #742-04226-0637

    Info Icon
    Manufacturer substitution
    This part replaces GW-50049-01. Substitute parts can look different from the original.
    In Stock
    $27.45
    18% OFF Phone Price : $33.45Info Icon
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  • Lawn & Garden Equipment Washer for Troybilt 21A-634A766 - Part 736-04257

    Shim and wheel shaft diagram

    Shim

    Part #GW-1166-5

    Replaced by #736-04257

    Info Icon
    Manufacturer substitution
    This part replaces GW-1166-5. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $7.29
    Minus Item
    Qty
    Plus Item
  • Kmart Reverse Arm for Troybilt 21A-634A766 - Part 786-04092-4044

    Tine hood/transmission diagram

    Reverse Arm

    Part #1916570

    Replaced by #786-04092-4044

    Info Icon
    Manufacturer substitution
    This part replaces 1916570. Substitute parts can look different from the original.
    In Stock
    $61.14
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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…

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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.…

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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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