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MTD 21AA412A000 rear-tine tiller Parts

Here are the diagrams and repair parts for MTD 21AA412A000 rear-tine tiller, as well as links to manuals and error code tables, if available.

MTD 21AA412A000 rear-tine tiller
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Browse Parts for 21AA412A000 Tillers

  • Tiller Drive Belt for MTD 21AA412A000 - Part 954-0438

    Drive system diagram

    V-belt

    Part #754-0438

    Replaced by #954-0438

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    Manufacturer substitution
    This part replaces 754-0438. Substitute parts can look different from the original.
    Get free shipping with Automatic Reorder
    In Stock
    $65.95
    8% OFF Phone Price : $71.95Info Icon
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  • Tiller Spacer for MTD 21AA412A000 - Part 950-0570

    Gear case diagram

    Spacer

    Part #750-0570

    Replaced by #950-0570

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    Manufacturer substitution
    This part replaces 750-0570. Substitute parts can look different from the original.
    In Stock
    $18.49
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  • Shield for MTD 21AA412A000 - Part 786-0090A-0637

    Handle & tine shield diagram

    Shield

    Part #786-0090

    Replaced by #786-0090A-0637

    Info Icon
    Manufacturer substitution
    This part replaces 786-0090. Substitute parts can look different from the original.
    In Stock
    $52.18
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  • Tiller Clutch Cable for MTD 21AA412A000 - Part 946-0916

    Handle & tine shield diagram

    Clutch Cable

    Part #746-0916

    Replaced by #946-0916

    Info Icon
    Manufacturer substitution
    This part replaces 746-0916. Substitute parts can look different from the original.
    In Stock
    $82.87
    7% OFF Phone Price : $88.87Info Icon
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  • Washer for MTD 21AA412A000 - Part 736-05031

    Gear case diagram

    Tiller Flat Washer

    Part #736-0442

    Replaced by #736-05031

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    Manufacturer substitution
    This part replaces 736-0442. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $5.80
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  • #50 Chain 5/ for MTD 21AA412A000 - Part 913-0226

    Gear case diagram

    Chain

    Part #713-0226

    Replaced by #913-0226

    Info Icon
    Manufacturer substitution
    This part replaces 713-0226. Substitute parts can look different from the original.
    In Stock
    $191.46
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  • Lawn & Garden Equipment Shoulder Screw for MTD 21AA412A000 - Part 938-0849

    Handle & tine shield diagram

    Shoulder Screw

    Part #738-0849

    Replaced by #938-0849

    Info Icon
    Manufacturer substitution
    This part replaces 738-0849. Substitute parts can look different from the original.
    In Stock
    $18.49
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    Qty
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  • Lawn Tractor Flat Washer for MTD 21AA412A000 - Part 936-0336

    Gear case diagram

    Flat Washer

    Part #736-0336

    Replaced by #936-0336

    Info Icon
    Manufacturer substitution
    This part replaces 736-0336. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $8.20
    Minus Item
    Qty
    Plus Item
  • Lawn & Garden Equipment Knob for MTD 21AA412A000 - Part 712-0421

    Handle & 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
    In Stock
    $2.90
    26% OFF Phone Price : $3.90Info Icon
    Minus Item
    Qty
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  • Agri-fab Log Splitter Hex Jam Nut for MTD 21AA412A000 - Part 712-3008

    Handle & tine shield diagram

    Hex Jam Nut

    Part #712-3008

    Replaced by #712-3008

    Info Icon
    Manufacturer substitution
    This part replaces 712-3008. Substitute parts can look different from the original.
    This item is not returnable
    In Stock
    $2.16
    Minus Item
    Qty
    Plus Item

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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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.…

Read more

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