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MTD 21AA404B031 rear-tine tiller Parts
Here are the diagrams and repair parts for MTD 21AA404B031 rear-tine tiller, as well as links to manuals and error code tables, if available.
Owner’s manual
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Browse Parts for21AA404B031 Tillers
Transmission diagram
Transmission Assembly
Part #918-04815Replaced by #918-04815A
Manufacturer substitutionThis part replaces 918-04815. Substitute parts can look different from the original.In Stock$950.66$12.00 OFF Phone Price : $962.66
Qty
Handle & tine shield diagram
End Plug
Part #735-04105Replaced by #735-04105A
Manufacturer substitutionThis part replaces 735-04105. Substitute parts can look different from the original.In Stock$32.52QtyHandle & tine shield diagram
Lawn Tractor Hex Bolt
Part #710-0805Replaced by #710-0805A
Manufacturer substitutionThis part replaces 710-0805. Substitute parts can look different from the original.This item is not returnableIn Stock$30.75QtyHandle & tine shield diagram
Lawn & Garden Equipment Wheel Axle Bolt
Part #938-0533Replaced by #738-0533
Manufacturer substitutionThis part replaces 938-0533. Substitute parts can look different from the original.In Stock$34.30QtyDrive system diagram
Tiller Engine Pulley
Part #756-04336A
The manufacturer no longer makes this part, and there's no substitute part
Handle & tine shield diagram
Tine Shield Mounting Bracket
Part #786-04352-0638
The manufacturer no longer makes this part, and there's no substitute part
Drive system diagram
Mounting Frame, Rh
Part #786-04350-0638
The manufacturer no longer makes this part, and there's no substitute part
Drive system diagram
Mounting Frame, Lh
Part #786-04351-0638
The manufacturer no longer makes this part, and there's no substitute part
Handle & tine shield diagram
Handle Assembly
Part #686-04098-0638
The manufacturer no longer makes this part, and there's no substitute part
Handle & tine shield diagram
Upper Handle Assembly
Part #649-04054-0638
The manufacturer no longer makes this part, and there's no substitute part
RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES
High Pro Key
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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.
Thinking about tilling your garden this fall? Learn the pros and cons of fall tilling, when it makes sense, and how to p...
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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