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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.
 Owner’s manualBy Schematic
SELECT DIAGRAM
Browse Parts for
21AS144R799 Tillers
#40
Engine parts diagram
Bushing
Part #753-04035
The manufacturer no longer makes this part, and there's no substitute part
#57
Engine parts diagram
Rope
Part #791-182661
The manufacturer no longer makes this part, and there's no substitute part
#88
Engine parts diagram
Button
Part #791-181008
The manufacturer no longer makes this part, and there's no substitute part
#59
Engine parts diagram
Starter assembly
Part #753-05075
The manufacturer no longer makes this part, and there's no substitute part
#90
Engine parts diagram
Wrist pin
Part #791-181006
The manufacturer no longer makes this part, and there's no substitute part
#35
Cultivator assembly diagram
Screw
Part #753-04077
The manufacturer no longer makes this part, and there's no substitute part
#72
Engine parts diagram
Flywheel
Part #791-182736
The manufacturer no longer makes this part, and there's no substitute part
#2
Cultivator assembly diagram
Spring
Part #753-04043
The manufacturer no longer makes this part, and there's no substitute part
#86
Engine parts diagram
O-ring
Part #791-182290
The manufacturer no longer makes this part, and there's no substitute part
#32
Cultivator assembly diagram
Tine
Part #753-04069
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
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.
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Rear tine tiller or front tine tiller, what to know to help in choosing the correct one for your needs.…