MTD
Front-Tine Tiller

Model # 21A-344E299 Official MTD front-tine tiller

Here are the diagrams and repair parts for Official MTD 21A-344E299 front-tine tiller, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 240 parts  |

Lawn Tractor Screw (replaces 01000628, 01000865, 1186307, 1186308, 791-180288, 791-683298, 910-0599) 710-0599
#8

Tines/engine diagram

Lawn tractor screw (replaces 01000628, 01000865, 1186307, 1186308, 791-180288, 791-683298, 910-0599)

Part #710-0599

BEST SELLER
This item is not returnable
$4.91
17% OFF Phone Price : $5.91
In Stock
Yard Machines Lawn & Garden Equipment Bell Washer (replaces 936-0242) 736-0242
Yard machines lawn & garden equipment bell washer (replaces 936-0242)

Part #736-0242

BEST SELLER
This item is not returnable
$6.58
13% OFF Phone Price : $7.58
In Stock
Yard-man Lawn Tractor Cotter Pin 714-04043
Yard-man lawn tractor cotter pin

Part #714-04043

This item is not returnable
$7.49
12% OFF Phone Price : $8.49
In Stock
Lawn & Garden Equipment Hex Nut 912-0429
#34

Handles/wheels diagram

Lawn & garden equipment hex nut

Part #912-0429

Replaced by #712-0429

?
Manufacturer substitution
This part replaces 912-0429. Substitute parts can look different from the original.
This item is not returnable
In Stock
Lawn Tractor Hex Bolt 710-3008
#15

Tines/engine diagram

Lawn tractor hex bolt

Part #710-3008

This item is not returnable
$4.62
18% OFF Phone Price : $5.62
In Stock
Tiller Drive Belt (replaces 754-0428) 954-0428
#35

Tines/engine diagram

Tiller drive belt (replaces 754-0428)

Part #954-0428

Get free shipping with Automatic Reorder

$39.73
13% OFF Phone Price : $45.73
In Stock
Tiller Depth Stake Bracket, Right 786-0004-0637
#10

Handles/wheels diagram

Tiller depth stake bracket, right

Part #786-0004-0637

In Stock
Aircap Tiller Idler Pulley 756-0313
#36

Tines/engine diagram

Aircap tiller idler pulley

Part #756-0313

This item is not returnable
$30.11
17% OFF Phone Price : $36.11
In Stock
Kmart Tiller Handle (replaces 649-04040, 649-04040-0721) 649-04040-4044
#12

Handles/wheels diagram

Kmart tiller handle (replaces 649-04040, 649-04040-0721)

Part #649-04040-4044

$153.12
7% OFF Phone Price : $165.12
In Stock
Tiller Tine Assembly (replaces 642-0003) 642-0003-0637
#3

Tines/engine diagram

Tiller tine assembly (replaces 642-0003)

Part #642-0003-0637

$81.99
7% OFF Phone Price : $87.99
In Stock

Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

Main causes: clutch cable problems, faulty transmission…

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

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

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

Main causes: broken shaft clevis pins, transmission failure…

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

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

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 difficulty
Time required
 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.

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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.…