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Troybilt 21A-665B063 rear-tine tiller Parts

Here are the diagrams and repair parts for Troybilt 21A-665B063 rear-tine tiller, as well as links to manuals and error code tables, if available.

Troybilt 21A-665B063 rear-tine tiller
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Browse Parts for21A-665B063 Tillers

  • Square Key for Troybilt 21A-665B063 - Part 714-0133

    Troy-bilt Key, 3/16 X 1-1

    Part #1108841

    Replaced by #714-0133

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    Manufacturer substitution
    This part replaces 1108841. Substitute parts can look different from the original.
    In Stock
    $31.48
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  • Lawn & Garden Equipment Nut for Troybilt 21A-665B063 - Part 912-3057

    Handlebar/wheel gear control diagram

    Troy-bilt Nut-hex 5 16

    Part #1186211

    Replaced by #912-3057

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    Manufacturer substitution
    This part replaces 1186211. Substitute parts can look different from the original.
    In Stock
    $34.32
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  • Ace Tiller Retainer Ring for Troybilt 21A-665B063 - Part 716-04104

    Wheel drive gear/oil seal diagram

    Troy-bilt Retainer 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
    $29.64
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  • Troybilt Reverse Spring for Troybilt 21A-665B063 - Part 732-04077

    Stabilizer/cover/transmission pulley diagram

    Troy-bilt Return Rever

    Part #1916728

    Replaced by #732-04077

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    Manufacturer substitution
    This part replaces 1916728. Substitute parts can look different from the original.
    In Stock
    $39.63
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  • Ace Square Plug Pipe for Troybilt 21A-665B063 - Part 1105620

    Transmission diagram

    Troy-bilt Plug

    Part #1105620

    Replaced by #1105620

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    Manufacturer substitution
    This part replaces 1105620. Substitute parts can look different from the original.
    In Stock
    $30.59
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  • Ace Spur Gear for Troybilt 21A-665B063 - Part 717-04690

    Drive shaft/pinion diagram

    Gear-spur Ma

    Part #GW-20718

    Replaced by #717-04690

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    Manufacturer substitution
    This part replaces GW-20718. Substitute parts can look different from the original.
    In Stock
    $105.87
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  • Ace Tiller Flat Washer for Troybilt 21A-665B063 - Part 736-04259

    Wheel drive gear/oil seal diagram

    Shim

    Part #GW-1166-3

    Replaced by #736-04259

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    Manufacturer substitution
    This part replaces GW-1166-3. Substitute parts can look different from the original.
    In Stock
    $34.32
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  • Ace Tiller Flanged Hex Screw for Troybilt 21A-665B063 - Part 710-04042

    Handlebar/wheel gear control diagram

    Troy-bilt Screw

    Part #1186347

    Replaced by #710-04042

    Info Icon
    Manufacturer substitution
    This part replaces 1186347. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $31.24
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  • Tiller Ring Retainer for Troybilt 21A-665B063 - Part 716-04102

    Drive shaft/pinion 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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  • Ace Screw-rh for Troybilt 21A-665B063 - Part 1114748

    Handlebar/wheel gear control diagram

    Troy-bilt Scr-rd Hd 10

    Part #1114748

    Replaced by #1114748

    Info Icon
    Manufacturer substitution
    This part replaces 1114748. Substitute parts can look different from the original.
    In Stock
    $33.06
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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...

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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