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Troybilt 21A-644H766 tiller

Troybilt 21A-644H766 tiller Parts

Here are the diagrams and repair parts for Troybilt 21A-644H766 tiller, as well as links to manuals and error code tables, if available.

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Browse Parts for 21A-644H766 Tillers

  • Ace Belt Guide for Troybilt 21A-644H766 - Part 732-04081

    Engine bracket/belt/cover diagram

    Belt Guide

    Part #1916725

    Replaced by #732-04081

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    Manufacturer substitution
    This part replaces 1916725. Substitute parts can look different from the original.
    In Stock
    $19.06
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  • Lawn Tractor Cable Tie for Troybilt 21A-644H766 - Part 726-0178

    Handlebar/cable 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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  • Lawn & Garden Equipment Flat Washer for Troybilt 21A-644H766 - Part 736-04304

    Shim/driveshaft diagram

    Washer

    Part #GW-50043

    Replaced by #736-04304

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    Manufacturer substitution
    This part replaces GW-50043. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $8.09
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  • Mtd Lawn & Garden Equipment Roll Pin for Troybilt 21A-644H766 - Part 715-04034

    Tine hood/transmission diagram

    Drive Pin

    Part #1185469

    Replaced by #715-04034

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    Manufacturer substitution
    This part replaces 1185469. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $34.32
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  • Ace Split Spacer for Troybilt 21A-644H766 - Part 750-04556

    Tine hood/transmission diagram

    Spacer

    Part #GW-9534

    Replaced by #750-04556

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    Manufacturer substitution
    This part replaces GW-9534. Substitute parts can look different from the original.
    In Stock
    $34.32
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  • Tiller Worm Shaft Oil Seal for Troybilt 21A-644H766 - Part 921-04030

    Transmission housing assembly diagram

    Oil Seal

    Part #721-04030

    Replaced by #921-04030

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    Manufacturer substitution
    This part replaces 721-04030. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $18.84
    10% OFF Phone Price : $20.84Info Icon
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  • Lawn & Garden Equipment Flat Washer for Troybilt 21A-644H766 - Part 936-3008

    Transmission housing assembly 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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  • Ace Tiller Wheel Axle Oil Seal for Troybilt 21A-644H766 - Part 921-04031

    Transmission housing assembly diagram

    Oil Seal

    Part #721-04031

    Replaced by #921-04031

    Info Icon
    Manufacturer substitution
    This part replaces 721-04031. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $19.93
    9% OFF Phone Price : $21.93Info Icon
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  • Troybilt Tiller Washer for Troybilt 21A-644H766 - Part 736-04258

    Wheel shaft/shim 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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  • Flat Washer for Troybilt 21A-644H766 - Part 736-04310

    Wheel shaft/shim diagram

    Shim

    Part #GW-1132-2

    Replaced by #736-04310

    Info Icon
    Manufacturer substitution
    This part replaces GW-1132-2. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $6.63
    Minus Item
    Qty
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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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