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MTD 21A-240D731 front-tine tiller Parts

Here are the diagrams and repair parts for MTD 21A-240D731 front-tine tiller, as well as links to manuals and error code tables, if available.

MTD 21A-240D731 front-tine tiller
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Browse Parts for21A-240D731 Tillers

  • Gasket Case/ for MTD 21A-240D731 - Part 721P04157

    Tiller parts diagram

    Gasket Case

    Part #721-04157

    Replaced by #721P04157

    Info Icon
    Manufacturer substitution
    This part replaces 721-04157. Substitute parts can look different from the original.
    In Stock
    $54.32
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  • Tube:rear Wh for MTD 21A-240D731 - Part 749-04266

    Tiller parts diagram

    Tube:rear Wh

    Part #749-04266

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

  • Axle for MTD 21A-240D731 - Part 711-04520

    Tiller parts diagram

    Axle

    Part #711-04520

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

  • Depth Stake Tube for MTD 21A-240D731 - Part 749-04265

    Tiller parts diagram

    Depth Stake Tube

    Part #749-04265

    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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