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MTD 21AA414A729 rear-tine tiller Parts
Here are the diagrams and repair parts for MTD 21AA414A729 rear-tine tiller, as well as links to manuals and error code tables, if available.
Owner’s manualBy Schematic
By Part
SELECT DIAGRAM
Browse Parts for 21AA414A729 Tillers
Tine shield/handle diagram
Retainer Bracket
Part #786-0098
The manufacturer no longer makes this part, and there's no substitute part
Wheels/tine diagram
Shift Cover
Part #786-0168
The manufacturer no longer makes this part, and there's no substitute part
Gear case diagram
Case Assy Ge
Part #686-0039
The manufacturer no longer makes this part, and there's no substitute part
Wheels/tine diagram
Bolt
Part #738-0899
The manufacturer no longer makes this part, and there's no substitute part
Wheels/tine diagram
Rim Assembly (for Models 643b, 645a)
Part #634-04218
The manufacturer no longer makes this part, and there's no substitute part
Gear case diagram
Sprocket-11t
Part #713-0435
The manufacturer no longer makes this part, and there's no substitute part
Wheels/tine diagram
Tine Assembly, Left
Part #642-0015
The manufacturer no longer makes this part, and there's no substitute part
Gear case diagram
Clutch Collar
Part #718-0234
The manufacturer no longer makes this part, and there's no substitute part
Gear case diagram
Flat Washer
Part #736-0512
The manufacturer no longer makes this part, and there's no substitute part
Tine shield/handle diagram
Bracket Assembly
Part #686-0043A
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: leaky engine head gasket, damaged sump gasket, damaged oil drain plug seal, loose or cracked fuel line, lea…
Main causes: dirty carburetor, engine needs tune up, stale gas…
Main causes: carburetor failure, bad gasoline, dirty spark plug, broken recoil starter…
Main causes: broken shaft clevis pins, transmission failure…
Main causes: damaged tines, broken clevis pins, worn drive belt, faulty transmission, clutch cable problems, improper de…
Main causes: clutch cable problems, faulty transmission…
Main causes: worn or broken drive belts, bad transmission, clutch cable problems…
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 time and Difficulty
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.
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
This chart will help you find the right carburetor for your Craftsman snowblower, tiller or log splitter.…
These frequently asked questions might help you figure out what's wrong with your garden tiller.…
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