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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 for21A-634A766 Tillers

  • Holder-tine for Troybilt 21A-634A766 - Part 686-05008-0637

    Wheel and tire assembly diagram

    Tine Holder

    Part #1916747

    Replaced by #686-05008-0637

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    Manufacturer substitution
    This part replaces 1916747. Substitute parts can look different from the original.
    In Stock
    $158.10
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  • Lawn Tractor Mandrel Bearing for Troybilt 21A-634A766 - Part 941-04298

    Driveshaft assembly diagram

    Cone Drive Bearing

    Part #GW-9401

    Replaced by #941-04298

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    Manufacturer substitution
    This part replaces GW-9401. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $27.40
    18% OFF Phone Price : $33.40Info Icon
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  • Tiller Ring Retainer for Troybilt 21A-634A766 - Part 716-04102

    Driveshaft assembly diagram

    Retaining Ring

    Part #GW-9517

    Replaced by #716-04102

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    Manufacturer substitution
    This part replaces GW-9517. Substitute parts can look different from the original.
    In Stock
    $30.92
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  • Tiller Tine Shaft Oil Seal for Troybilt 21A-634A766 - Part 921-04036

    Transmission housing diagram

    Oil Seal

    Part #721-04036

    Replaced by #921-04036

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    Manufacturer substitution
    This part replaces 721-04036. 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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  • Shld Asm for Troybilt 21A-634A766 - Part 686-04076A-0638

    Tine hood/transmission diagram

    Hood Assembly

    Part #686-04043

    Replaced by #686-04076A-0638

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    Manufacturer substitution
    This part replaces 686-04043. Substitute parts can look different from the original.
    In Stock
    $159.22
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  • Tiller Clevis Pin for Troybilt 21A-634A766 - Part 711-04126

    Wheel and tire assembly diagram

    Clevis Pin

    Part #GW-9380

    Replaced by #711-04126

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    Manufacturer substitution
    This part replaces GW-9380. Substitute parts can look different from the original.
    In Stock
    $30.57
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  • Belt Cover for Troybilt 21A-634A766 - Part 731-05268

    Belt drive and cover diagram

    Belt Cover

    Part #1916660

    Replaced by #731-05268

    Info Icon
    Manufacturer substitution
    This part replaces 1916660. Substitute parts can look different from the original.
    In Stock
    $105.45
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  • Drive Shaft for Troybilt 21A-634A766 - Part 911-04110

    Driveshaft assembly diagram

    Drive Shaft

    Part #711-04110

    Replaced by #911-04110

    Info Icon
    Manufacturer substitution
    This part replaces 711-04110. Substitute parts can look different from the original.
    In Stock
    $270.09
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  • Wheel Bearing for Troybilt 21A-634A766 - Part 094908P

    Shim and wheel shaft diagram

    Shim

    Part #GW-1166-1

    Replaced by #094908P

    Info Icon
    Manufacturer substitution
    This part replaces GW-1166-1. Substitute parts can look different from the original.
    In Stock
    $50.48
    Minus Item
    Qty
    Plus Item
  • Flat Washer for Troybilt 21A-634A766 - Part 736-04192

    Belt drive and cover diagram

    Shim

    Part #GW-1138-2

    Replaced by #736-04192

    Info Icon
    Manufacturer substitution
    This part replaces GW-1138-2. Substitute parts can look different from the original.
    In Stock
    $34.32
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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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