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MTD 21AA414A729 rear-tine tiller

MTD 21AA414A729 rear-tine tiller Parts

Here are the diagrams and repair parts for MTD 21AA414A729 rear-tine tiller, as well as links to manuals and error code tables, if available.

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Browse Parts for 21AA414A729 Tillers

  • Belt Keeper Bracket Assembly for MTD 21AA414A729 - Part 686-0031A

    Wheels/tine diagram

    Belt Keeper Bracket Assembly

    Part #686-0031A

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

  • Jackshaft Shaft for MTD 21AA414A729 - Part 738-0885

    Gear case diagram

    Jackshaft Shaft

    Part #738-0885

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

  • Gear Spur 17 for MTD 21AA414A729 - Part 717-1409

    Gear case diagram

    Gear Spur 17

    Part #717-1409

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

  • Gear Assembly for MTD 21AA414A729 - Part 617-0004

    Gear case diagram

    Gear Assembly

    Part #617-0004

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

  • Clutch Collar for MTD 21AA414A729 - Part 718-0234

    Gear case diagram

    Clutch Collar

    Part #718-0234

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

  • Flat Washer for MTD 21AA414A729 - Part 736-0541

    Gear case diagram

    Flat Washer

    Part #736-0541

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

  • Retainer Bracket for MTD 21AA414A729 - Part 786-0118

    Tine shield/handle diagram

    Retainer Bracket

    Part #786-0118

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

  • Complete Wheel Assembly for MTD 21AA414A729 - Part 634-04233

    Wheels/tine diagram

    Complete Wheel Assembly

    Part #634-04233

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

  • Cover Bracket for MTD 21AA414A729 - Part 786-0117

    Wheels/tine diagram

    Cover Bracket

    Part #786-0117

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

  • Tiller Gear Case Gasket for MTD 21AA414A729 - 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

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.

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.…

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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