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MTD 21AA45M5099 rear-tine tiller

MTD 21AA45M5099 rear-tine tiller Parts

Here are the diagrams and repair parts for MTD 21AA45M5099 rear-tine tiller, as well as links to manuals and error code tables, if available.

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Browse Parts for 21AA45M5099 Tillers

  • Bracket-lh H for MTD 21AA45M5099 - Part 786-0177-0691

    Handles/tine shield diagram

    Bracket-lh H

    Part #786-0177-0691
    In Stock
    $28.80
    Minus Item
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  • Ryobi Tiller Snap Ring for MTD 21AA45M5099 - Part 716-0865

    Gears/housing diagram

    Ryobi Tiller Snap Ring

    Part #716-0865
    This item is not returnable
    In Stock
    $8.09
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  • Tiller Bearing for MTD 21AA45M5099 - Part 741-0421B

    Gears/housing diagram

    Tiller Bearing

    Part #741-0421

    Replaced by #741-0421B

    Info Icon
    Manufacturer substitution
    This part replaces 741-0421. Substitute parts can look different from the original.
    In Stock
    $30.40
    Minus Item
    Qty
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  • Tiller Bearing for MTD 21AA45M5099 - Part 941-0420B

    Gears/housing diagram

    Tiller Bearing

    Part #941-0420

    Replaced by #941-0420B

    Info Icon
    Manufacturer substitution
    This part replaces 941-0420. Substitute parts can look different from the original.
    Check Availability
    $47.18
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  • Tiller Tine Shaft for MTD 21AA45M5099 - Part 611-0021A

    Gears/housing diagram

    Tiller Tine Shaft

    Part #611-0021

    Replaced by #611-0021A

    Info Icon
    Manufacturer substitution
    This part replaces 611-0021. Substitute parts can look different from the original.
    In Stock
    $142.19
    12% OFF Was : $161.12Info Icon
    Minus Item
    Qty
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  • Lawn & Garden Equipment Hex Nut for MTD 21AA45M5099 - Part 712-0429

    Handles/tine shield diagram

    Lawn & Garden Equipment Hex Nut

    Part #912-0429

    Replaced by #712-0429

    Info Icon
    Manufacturer substitution
    This part replaces 912-0429. Substitute parts can look different from the original.
    In Stock
    $35.39
    14% OFF Phone Price : $41.39Info Icon
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  • Yard-man Tiller Flat Washer for MTD 21AA45M5099 - Part 736-0163

    Gears/housing diagram

    Tiller Flat Washer

    Part #936-0163

    Replaced by #736-0163

    Info Icon
    Manufacturer substitution
    This part replaces 936-0163. Substitute parts can look different from the original.
    In Stock
    $29.79
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    Qty
    Plus Item
  • Toro Lawn & Garden Equipment Lock Washer for MTD 21AA45M5099 - Part 736-0169

    Engine/tines/wheels diagram

    Lawn & Garden Equipment Lock Washer

    Part #936-0169

    Replaced by #736-0169

    Info Icon
    Manufacturer substitution
    This part replaces 936-0169. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $5.60
    Minus Item
    Qty
    Plus Item
  • Case Assembly for MTD 21AA45M5099 - Part 986-04074A

    Engine/tines/wheels diagram

    Case Assembly

    Part #986-04074A

    The manufacturer no longer makes this part, and there's no substitute part

  • Mtd Lawn & Garden Equipment Pal Nut for MTD 21AA45M5099 - Part 726-0106

    Handles/tine shield diagram

    Lawn & Garden Equipment Push Cap Nut

    Part #926-0106

    Replaced by #726-0106

    Info Icon
    Manufacturer substitution
    This part replaces 926-0106. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $26.02
    Minus Item
    Qty
    Plus Item

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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.…

Read more
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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