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Troybilt 21A-634A766 tiller

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.

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Browse Parts for 21A-634A766 Tillers

  • 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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  • Flat Washer for Troybilt 21A-634A766 - Part 736-04192

    Belt drive and cover diagram

    Shim

    Part #GW-1138-2

    Replaced by #736-04192

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    Manufacturer substitution
    This part replaces GW-1138-2. Substitute parts can look different from the original.
    In Stock
    $12.46
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  • Lawn Mower Drive Control Cable for Troybilt 21A-634A766 - Part 946-04208

    Cable assembly / handlebars diagram

    Drive Cable

    Part #1918745

    Replaced by #946-04208

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    Manufacturer substitution
    This part replaces 1918745. Substitute parts can look different from the original.
    In Stock
    $46.28
    11% OFF Phone Price : $52.28Info Icon
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  • Tiller Washer for Troybilt 21A-634A766 - Part 748-04087A

    Belt drive and cover diagram

    Shoulder Washer

    Part #1917746

    Replaced by #748-04087A

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    Manufacturer substitution
    This part replaces 1917746. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $11.86
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  • Tiller Worm Gear for Troybilt 21A-634A766 - Part 917-04383

    Shim and wheel shaft diagram

    Worm Gear

    Part #1904279

    Replaced by #917-04383

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    Manufacturer substitution
    This part replaces 1904279. Substitute parts can look different from the original.
    In Stock
    $159.97
    7% OFF Phone Price : $171.97Info Icon
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  • Tiller Gear Case Cover Gasket for Troybilt 21A-634A766 - Part 921-04229

    Transmission housing diagram

    Housing Cover Gasket

    Part #GW-50032

    Replaced by #921-04229

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    Manufacturer substitution
    This part replaces GW-50032. Substitute parts can look different from the original.
    In Stock
    $12.49
    14% OFF Phone Price : $14.49Info Icon
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  • Lawn Tractor Mandrel Shaft Spacer for Troybilt 21A-634A766 - Part 941-04299

    Driveshaft assembly diagram

    Drive Bearing Cup

    Part #GW-9400

    Replaced by #941-04299

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    Manufacturer substitution
    This part replaces GW-9400. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $34.32
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  • Shield for Troybilt 21A-634A766 - Part 686-04077B-0638

    Tine hood/transmission diagram

    Hood Assy-ti

    Part #686-04041

    Replaced by #686-04077B-0638

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    Manufacturer substitution
    This part replaces 686-04041. Substitute parts can look different from the original.
    In Stock
    $238.25
    5% OFF Phone Price : $250.25Info Icon
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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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  • Ace Tiller Retainer Ring for Troybilt 21A-634A766 - Part 716-04104

    Shim and wheel shaft diagram

    Retainer, Snap Ring

    Part #1909950

    Replaced by #716-04104

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    Manufacturer substitution
    This part replaces 1909950. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $29.53
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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.…

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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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