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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

  • 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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  • Troybilt Tiller Washer for Troybilt 21A-665B063 - Part 736-04258

    Wheel drive gear/oil seal 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.
    In Stock
    $30.30
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  • Ace Tiller Pinion Shaft Oil Seal for Troybilt 21A-665B063 - Part 921-04044

    Transmission diagram

    Troy-bilt Oil Seal

    Part #1983632

    Replaced by #921-04044

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    Manufacturer substitution
    This part replaces 1983632. Substitute parts can look different from the original.
    In Stock
    $36.10
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  • Ace Tiller Hex Bolt for Troybilt 21A-665B063 - Part 710-04049

    Troy-bilt Flange

    Part #1186328

    Replaced by #710-04049

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    Manufacturer substitution
    This part replaces 1186328. Substitute parts can look different from the original.
    In Stock
    $31.32
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  • Ace Tiller Idler Pulley for Troybilt 21A-665B063 - Part 756-04170

    Stabilizer/cover/transmission pulley diagram

    Pulley

    Part #GW-9090

    Replaced by #756-04170

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    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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  • Agri-fab Lawn & Garden Equipment Hex Bolt for Troybilt 21A-665B063 - Part 47600

    Stabilizer/cover/transmission pulley diagram

    Lawn & Garden Equipment Hex Bolt

    Part #710-0117

    Replaced by #47600

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    Manufacturer substitution
    This part replaces 710-0117. Substitute parts can look different from the original.
    In Stock
    $25.55
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  • Ace Lawn & Garden Equipment Washer for Troybilt 21A-665B063 - Part 736-0607

    Hiller/furrower attachment diagram

    Troy-bilt Washer

    Part #1177548

    Replaced by #736-0607

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    Manufacturer substitution
    This part replaces 1177548. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $6.05
    14% OFF Phone Price : $7.05Info Icon
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  • Lawn & Garden Equipment Screw for Troybilt 21A-665B063 - Part 710-0805A

    Stabilizer/cover/transmission pulley diagram

    Lawn Tractor Hex Bolt

    Part #710-0805

    Replaced by #710-0805A

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    Manufacturer substitution
    This part replaces 710-0805. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $30.75
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  • Ace Idler Pulley for Troybilt 21A-665B063 - Part 756-04169

    Stabilizer/cover/transmission pulley diagram

    Troy-bilt Idler Pulley

    Part #1916535

    Replaced by #756-04169

    Info Icon
    Manufacturer substitution
    This part replaces 1916535. Substitute parts can look different from the original.
    In Stock
    $60.85
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  • Ace Tiller Washer for Troybilt 21A-665B063 - Part 736-04445

    Handlebar/wheel gear control diagram

    Washer

    Part #GW-9955

    Replaced by #736-04445

    Info Icon
    Manufacturer substitution
    This part replaces GW-9955. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $29.42
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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....

Read more

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