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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

  • 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
    $114.88
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    Qty
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  • 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
    $113.76
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  • Ace Tiller Idler Pulley for Troybilt 21A-634A766 - Part 756-04170

    Belt drive and cover diagram

    Pulley

    Part #GW-9090

    Replaced by #756-04170

    Info Icon
    Manufacturer substitution
    This part replaces GW-9090. Substitute parts can look different from the original.
    In Stock
    $47.84
    11% OFF Phone Price : $53.84Info Icon
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  • Tiller Worm Gear for Troybilt 21A-634A766 - Part 917-04381

    Shim and wheel shaft diagram

    Worm Gear

    Part #1916542

    Replaced by #917-04381

    Info Icon
    Manufacturer substitution
    This part replaces 1916542. Substitute parts can look different from the original.
    In Stock
    $177.00
    6% OFF Phone Price : $189.00Info Icon
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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

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    Manufacturer substitution
    This part replaces 711-04110. Substitute parts can look different from the original.
    In Stock
    $269.98
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  • Ace Tiller Flat Washer for Troybilt 21A-634A766 - Part 736-04259

    Shim and wheel shaft diagram

    Shim

    Part #GW-1166-3

    Replaced by #736-04259

    Info Icon
    Manufacturer substitution
    This part replaces GW-1166-3. Substitute parts can look different from the original.
    In Stock
    $12.46
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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
    $105.34
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    Qty
    Plus Item
  • Torsion Spring for Troybilt 21A-634A766 - Part 732-04320

    Tine hood/transmission diagram

    Torsion Spring

    Part #GW-9384

    Replaced by #732-04320

    Info Icon
    Manufacturer substitution
    This part replaces GW-9384. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $8.09
    Minus Item
    Qty
    Plus Item
  • Mtd Tiller Drive Belt for Troybilt 21A-634A766 - Part 954-04090

    Belt drive and cover diagram

    Belt

    Part #1916657

    Replaced by #954-04090

    Info Icon
    Manufacturer substitution
    This part replaces 1916657. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $28.29
    17% OFF Phone Price : $34.29Info Icon
    Minus Item
    Qty
    Plus Item
  • 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

    Info Icon
    Manufacturer substitution
    This part replaces GW-9400. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $34.32
    Minus Item
    Qty
    Plus Item

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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