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MTD 21AA412A052 rear-tine tiller Parts
Here are the diagrams and repair parts for MTD 21AA412A052 rear-tine tiller, as well as links to manuals and error code tables, if available.
Owner’s manual
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Browse Parts for 21AA412A052 Tillers
Handle & tine shield diagram
Depth Bar Assembly
Part #786-0120Replaced by #786-0120-0637
Manufacturer substitutionThis part replaces 786-0120. Substitute parts can look different from the original.In Stock$101.0011% OFF Phone Price : $113.00
Qty
Gear case diagram
Tiller Flat Washer
Part #736-0442Replaced by #736-05031
Manufacturer substitutionThis part replaces 736-0442. Substitute parts can look different from the original.This item is not returnableIn Stock$5.80QtyDrive system diagram
Super Tire
Part #734-1796Replaced by #734-1796A
Manufacturer substitutionThis part replaces 734-1796. Substitute parts can look different from the original.In Stock$154.157% OFF Phone Price : $166.15QtyDrive system diagram
Belt Cover
Part #786-0100
The manufacturer no longer makes this part, and there's no substitute part
Drive system diagram
Cover Bracket
Part #786-0117
The manufacturer no longer makes this part, and there's no substitute part
Drive system 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
Flat Washer
Part #736-0512
The manufacturer no longer makes this part, and there's no substitute part
Handle & tine shield diagram
Rod Gear Shield
Part #747-0902
The manufacturer no longer makes this part, and there's no substitute part
Drive system diagram
Tine Assembly, Right
Part #642-0016
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
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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