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MTD
Front-Tine Tiller

Model # 21A-250H765 Official MTD front tine gas tiller

Here are the diagrams and repair parts for Official MTD 21A-250H765 front tine gas tiller, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 32 parts  |
Yard Machines Bracket:mt:c 786-04307
#44

Front tine tiller diagram

Yard machines bracket:mt:c

Part #786-04307

$16.74
In Stock
Cotter Pin 714-0149B
Cotter pin

Part #714-0149B

This item is not returnable
$6.26
In Stock
Frame 786-04303
#11

Front tine tiller diagram

Frame

Part #786-04303

$68.80
In Stock
Spacer 750-04380
#58

Tine shield/handles/frame diagram

Spacer

Part #750-04380

$14.34
In Stock
Snap Ring 716-0102
#10

Tine shield/handles/frame diagram

Snap ring

Part #716-0102

$8.69
In Stock
Clevis Pin 711-0415
Clevis pin

Part #711-0415

$8.00
In Stock
Yard Machines Handle Assembly 649-04029
#3

Tine shield/handles/frame diagram

Yard machines handle assembly

Part #649-04029

$96.93
In Stock
Ace Flywheel Pulley 756-04217
#15

Front tine tiller diagram

Ace flywheel pulley

Part #756-04217

$103.36
In Stock
Yard Machines Bracket Assembly 686-04072
#37

Front tine tiller diagram

Yard machines bracket assembly

Part #686-04072

$75.53
In Stock
Front Bumper (if Equipped) 749-04185
#30

Tine shield/handles/frame diagram

Front bumper (if equipped)

Part #749-04185

$39.42
In Stock

Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

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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 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 won't my tillers wheels or tines turn?

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

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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 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'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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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 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.

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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.…

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Top questions about Sears and Sears PartsDirect

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A guide to garden tillers

A guide to garden tillers

Rear tine tiller or front tine tiller, what to know to help in choosing the correct one for your needs.…

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