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Troybilt 21A-644H766 tiller Parts
Here are the diagrams and repair parts for Troybilt 21A-644H766 tiller, as well as links to manuals and error code tables, if available.
Owner’s manual
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Browse Parts for 21A-644H766 Tillers
Wheel shaft/tine shaft diagram
Clinch Pin
Part #GW-9338Replaced by #714-04048
Manufacturer substitutionThis part replaces GW-9338. Substitute parts can look different from the original.In Stock$14.74
Qty
Tine hood/transmission diagram
Depth Lever
Part #GW-55018Replaced by #786-04292A-0638
Manufacturer substitutionThis part replaces GW-55018. Substitute parts can look different from the original.In Stock$95.82QtyShim/driveshaft diagram
Shim
Part #GW-1224-2Replaced by #736-04307
Manufacturer substitutionThis part replaces GW-1224-2. Substitute parts can look different from the original.This item is not returnableIn Stock$8.09QtyHandlebar/cable diagram
Bracket
Part #786-04188Replaced by #786-04188-0638
Manufacturer substitutionThis part replaces 786-04188. Substitute parts can look different from the original.In Stock$25.16QtyEngine bracket/belt/cover diagram
Tiller Engine Bracket
Part #1916794
The manufacturer no longer makes this part, and there's no substitute part
Engine bracket/belt/cover diagram
Key, 3/16 X 1-1
Part #1108841
The manufacturer no longer makes this part, and there's no substitute part
Tine hood/transmission diagram
Bracket
Part #GW-55013-2
The manufacturer no longer makes this part, and there's no substitute part
Transmission housing assembly diagram
Housing Transaxle
Part #619-04013
The manufacturer no longer makes this part, and there's no substitute part
Transmission housing assembly diagram
Transmission Cover
Part #1918377
The manufacturer no longer makes this part, and there's no substitute part
Handlebar/cable diagram
Slotted Hex Screw
Part #GW-9855
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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