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Troybilt 21A-643C711 rear-tine tiller Parts

Here are the diagrams and repair parts for Troybilt 21A-643C711 rear-tine tiller, as well as links to manuals and error code tables, if available.

Troybilt 21A-643C711 rear-tine tiller
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Browse Parts for21A-643C711 Tillers

  • Mtd Snowblower Flat Washer for Troybilt 21A-643C711 - Part 736-0159

    Bumper/wheel assembly diagram

    Mtd Snowblower Flat Washer

    Part #736-0159
    This item is not returnable
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    $6.84
    13% OFF Phone Price : $7.84Info Icon
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  • Ryobi Lawn & Garden Equipment Spacer for Troybilt 21A-643C711 - Part 750-0258

    Bumper/wheel assembly diagram

    Ryobi Lawn & Garden Equipment Spacer

    Part #750-0258
    This item is not returnable
    In Stock
    $53.08
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  • Ace Idler Pulley for Troybilt 21A-643C711 - Part 756-04169

    Bumper/wheel assembly diagram

    Ace Idler Pulley

    Part #756-04169
    In Stock
    $60.85
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  • Tiller Tine Input Sprocket Assembly for Troybilt 21A-643C711 - Part 917-04380

    Wheel shaft diagram

    Worm Gear

    Part #1904278

    Replaced by #917-04380

    Info Icon
    Manufacturer substitution
    This part replaces 1904278. Substitute parts can look different from the original.
    In Stock
    $139.25
    8% OFF Phone Price : $151.25Info Icon
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  • Tiller Ring Retainer for Troybilt 21A-643C711 - Part 716-04102

    Driveshaft diagram

    Retaining Ring

    Part #GW-9517

    Replaced by #716-04102

    Info Icon
    Manufacturer substitution
    This part replaces GW-9517. Substitute parts can look different from the original.
    In Stock
    $30.92
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  • High Pro Key for Troybilt 21A-643C711 - Part 714-04059

    Wheel shaft diagram

    High Pro Key

    Part #GW-9305

    Replaced by #714-04059

    Info Icon
    Manufacturer substitution
    This part replaces GW-9305. Substitute parts can look different from the original.
    In Stock
    $34.32
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  • Tiller Tine Shaft Oil Seal for Troybilt 21A-643C711 - Part 921-04036

    Transmission housing diagram

    Oil Seal

    Part #721-04036

    Replaced by #921-04036

    Info Icon
    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-643C711 - Part 686-04076A-0638

    Tine hood/handlebar diagram

    Hood Assembly

    Part #686-04043

    Replaced by #686-04076A-0638

    Info Icon
    Manufacturer substitution
    This part replaces 686-04043. Substitute parts can look different from the original.
    In Stock
    $159.22
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  • Bar;dpth for Troybilt 21A-643C711 - Part 786-04292A-0638

    Tine hood/handlebar diagram

    Depth Adjustment Bar

    Part #786-04292

    Replaced by #786-04292A-0638

    Info Icon
    Manufacturer substitution
    This part replaces 786-04292. Substitute parts can look different from the original.
    In Stock
    $130.58
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  • Drive Shaft for Troybilt 21A-643C711 - Part 911-04110

    Driveshaft 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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Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

View all

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...

Read more
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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