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Troybilt 21A-665B063 rear-tine tiller Parts
Here are the diagrams and repair parts for Troybilt 21A-665B063 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 21A-665B063 Tillers
Drive shaft/pinion diagram
Troy-bilt Input Pinion (steel Shaft)
Part #GW-20791
The manufacturer no longer makes this part, and there's no substitute part
Row marker/pumper/hiller diagram
Troy-bilt Thumbscrew-1/4-20 X 1/2
Part #GW-9786
The manufacturer no longer makes this part, and there's no substitute part
Row marker/pumper/hiller diagram
Troy-bilt Washer-disc Spring
Part #GW-9925
The manufacturer no longer makes this part, and there's no substitute part
Row marker/pumper/hiller diagram
Troy-bilt Marker Arm-main Arm
Part #1904524
The manufacturer no longer makes this part, and there's no substitute part
Stabilizer/cover/transmission pulley diagram
Troy-bilt Spring
Part #1916727
The manufacturer no longer makes this part, and there's no substitute part
Troy-bilt Support Washer
Part #GW-1440
The manufacturer no longer makes this part, and there's no substitute part
Stabilizer/cover/transmission pulley diagram
Troy-bilt Reverse Idler Arm
Part #1918731
The manufacturer no longer makes this part, and there's no substitute part
Stabilizer/cover/transmission pulley diagram
Troy-bilt Screw
Part #1900396
The manufacturer no longer makes this part, and there's no substitute part
Transmission diagram
Troy-bilt Gasket, Tiller Housing Cover, .010 (a/r)
Part #GW-1129-1
The manufacturer no longer makes this part, and there's no substitute part
Hiller/furrower attachment diagram
Troy-bilt Hiller/furrower Attachement (option)
Part #OEM-290-251
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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