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MTD 21AA412A000 rear-tine tiller

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.

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Browse Parts for 21AA412A000 Tillers

  • Tiller Shift Fork for MTD 21AA412A000 - Part 618-0245B

    Gear case diagram

    Tiller Shift Fork

    Part #618-0245B

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

  • Jackshaft Shaft for MTD 21AA412A000 - Part 738-0884

    Gear case diagram

    Jackshaft Shaft

    Part #738-0884

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

  • Tiller Spacer for MTD 21AA412A000 - Part 750-0931

    Gear case diagram

    Tiller Spacer

    Part #750-0931

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

  • Hand Bracket for MTD 21AA412A000 - Part 786-0108

    Handle & tine shield diagram

    Hand Bracket

    Part #786-0108

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

  • Tine Shield for MTD 21AA412A000 - Part 786-0085

    Handle & tine shield diagram

    Tine Shield

    Part #786-0085

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

  • Spacer for MTD 21AA412A000 - Part 750-0938

    Gear case diagram

    Spacer

    Part #750-0938

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

  • Handle Cover for MTD 21AA412A000 - Part 786-0131

    Handle & tine shield diagram

    Handle Cover

    Part #786-0131

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

  • Tiller Gear Case Gasket for MTD 21AA412A000 - Part 721-0295

    Gear case diagram

    Tiller Gear Case Gasket

    Part #721-0295

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

  • Case Assy Ge for MTD 21AA412A000 - Part 686-0038

    Gear case diagram

    Case Assy Ge

    Part #686-0038

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

  • Shift Wheel Assembly for MTD 21AA412A000 - Part 611-04073

    Gear case diagram

    Shift Wheel Assembly

    Part #611-04073

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

Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

Main causes: leaky engine head gasket, damaged sump gasket, damaged oil drain plug seal, loose or cracked fuel line, lea…

Main causes: dirty carburetor, engine needs tune up, stale gas…

Main causes: carburetor failure, bad gasoline, dirty spark plug, broken recoil starter…

Main causes: broken shaft clevis pins, transmission failure…

Main causes: damaged tines, broken clevis pins, worn drive belt, faulty transmission, clutch cable problems, improper de…

Main causes: clutch cable problems, faulty transmission…

Main causes: worn or broken drive belts, bad transmission, clutch cable problems…

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.

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…

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.

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…

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.…

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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