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MTD
Front-Tine Tiller

Model # 21ES122R799 Official MTD front-tine tiller

Here are the diagrams and repair parts for Official MTD 21ES122R799 front-tine 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 72 parts  |
Lawn & Garden Equipment Clutch Assembly (replaces 791-182369) 753-05860
#21

Cylinder/fuel tank/flywheel diagram

Lawn & garden equipment clutch assembly (replaces 791-182369)

Part #753-05860

BEST SELLER
$32.18 | 
13% OFF Phone Price : $37.18
In Stock
Lawn & Garden Equipment Engine Start/stop Switch (replaces 182405) 791-182405
#31

Handle bar/tines/gearbox diagram

Lawn & garden equipment engine start/stop switch (replaces 182405)

Part #791-182405

BEST SELLER
$8.87 | 
48% OFF MSRP : $17.00
In Stock
Line Trimmer Primer Bulb And Hose Assembly (replaces 791-683947b, 791-bq03241) 791-683974B
#8

Cylinder/fuel tank/flywheel diagram

Line trimmer primer bulb and hose assembly (replaces 791-683947b, 791-bq03241)

Part #791-683974B

BEST SELLER
$28.51 | 
15% OFF Phone Price : $33.51
In Stock
Lawn & Garden Equipment Engine Carburetor Assembly 753-05215
#5

Cylinder/fuel tank/flywheel diagram

Lawn & garden equipment engine carburetor assembly

Part #753-05215

$57.37 | 
22% OFF MSRP : $74.00
In Stock
Tiller Tine, Outer Left 753-04071
#28

Handle bar/tines/gearbox diagram

Tiller tine, outer left

Part #753-04071

Replaced by #753-05986

?
Manufacturer substitution
This part replaces 753-04071. Substitute parts can look different from the original.
$54.19 | 
8% OFF Phone Price : $59.19
In Stock
Tiller Tine, Inner Right 753-04074
#25

Handle bar/tines/gearbox diagram

Tiller tine, inner right

Part #753-04074

Replaced by #753-05986

?
Manufacturer substitution
This part replaces 753-04074. Substitute parts can look different from the original.
$54.19 | 
8% OFF Phone Price : $59.19
In Stock
Tiller Tine, Outer Right 753-04073
#26

Handle bar/tines/gearbox diagram

Tiller tine, outer right

Part #753-04073

Replaced by #753-05987

?
Manufacturer substitution
This part replaces 753-04073. Substitute parts can look different from the original.
$59.61 | 
8% OFF Phone Price : $64.61
In Stock
Tiller Tine, Inner Left 753-04072
#27

Handle bar/tines/gearbox diagram

Tiller tine, inner left

Part #753-04072

Replaced by #753-05987

?
Manufacturer substitution
This part replaces 753-04072. Substitute parts can look different from the original.
$59.61 | 
8% OFF Phone Price : $64.61
In Stock
Tiller Clutch Cover Screw 791-181345
#23

Cylinder/fuel tank/flywheel diagram

Tiller clutch cover screw

Part #791-181345

This item is not returnable
$5.28 | 
16% OFF Phone Price : $6.28
In Stock
Lawn & Garden Equipment Bolt 791-182899
#5

Handle bar/tines/gearbox diagram

Lawn & garden equipment bolt

Part #791-182899

$12.54
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…

Read more

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

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

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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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.…

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