Front-Tine Tiller

Model # 21AS144R799 Official MTD front-tine tiller

Here are the diagrams and repair parts for Official MTD 21AS144R799 front-tine tiller, as well as links to manuals and error code tables, if available.

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Browse Parts for
21AS144R799 Tillers
Bolt 791-182899
#7

Cultivator assembly diagram

Bolt

Part #791-182899

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

Tine 753-04071
#30

Cultivator assembly diagram

Tine

Part #753-04071

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

Spacer 753-05078
#71

Engine parts diagram

Spacer

Part #753-05078

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

Lawn Mower Cover 753-04492
#27

Engine parts diagram

Lawn mower cover

Part #753-04492

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

Shroud 791-182743
#74

Engine parts diagram

Shroud

Part #791-182743

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

Gasket 791-182099
#7

Engine parts diagram

Gasket

Part #791-182099

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

Carb/pri 753-1225
#24

Engine parts diagram

Carb/pri

Part #753-1225

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

Crcase Asm:a 753-05079
#75

Engine parts diagram

Crcase asm:a

Part #753-05079

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

Shld:tine:po 753-05080
#25

Cultivator assembly diagram

Shld:tine:po

Part #753-05080

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

Clevis Pin 753-04059
#18

Cultivator assembly diagram

Clevis pin

Part #753-04059

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: 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.…

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.…