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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

  • Engine-compl for MTD 21AA45M5099 - Part 952Z170-A0

    Engine/tines/wheels diagram

    Tiller Engine

    Part #952Z170-V0B

    Replaced by #952Z170-A0

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    Manufacturer substitution
    This part replaces 952Z170-V0B. Substitute parts can look different from the original.
    In Stock
    $694.19
    Minus Item
    Qty
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  • Lawn & Garden Equipment Knob for MTD 21AA45M5099 - Part 712-0421

    Handles/tine shield diagram

    Tiller Wing Nut

    Part #712-0421

    Replaced by #712-0421

    Info Icon
    Manufacturer substitution
    This part replaces 712-0421. Substitute parts can look different from the original.
    This item is not returnable
    Check Availability
    $2.90
    26% OFF Phone Price : $3.90Info 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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  • Tiller Control Cable for MTD 21AA45M5099 - Part 946-1117

    Engine/tines/wheels diagram

    Tiller Clutch Cable

    Part #746-1117

    Replaced by #946-1117

    Info Icon
    Manufacturer substitution
    This part replaces 746-1117. Substitute parts can look different from the original.
    In Stock
    $89.15
    6% OFF Phone Price : $95.15Info Icon
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  • Mtd Tiller Belt Guard for MTD 21AA45M5099 - Part 784-0158B-0691

    Engine/tines/wheels diagram

    Belt Cover

    Part #784-0158A-0691

    Replaced by #784-0158B-0691

    Info Icon
    Manufacturer substitution
    This part replaces 784-0158A-0691. Substitute parts can look different from the original.
    In Stock
    $138.68
    8% OFF Phone Price : $150.68Info Icon
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  • Gear Assembly for MTD 21AA45M5099 - Part 617-0062A

    Gears/housing diagram

    Gear Assembly

    Part #617-0062

    Replaced by #617-0062A

    Info Icon
    Manufacturer substitution
    This part replaces 617-0062. Substitute parts can look different from the original.
    In Stock
    $160.96
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  • 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

  • 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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  • 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
  • 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
    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.…

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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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