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Troybilt 21A-645A063 rear-tine tiller Parts
Here are the diagrams and repair parts for Troybilt 21A-645A063 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-645A063 Tillers
Belt cover/guard/engine bracket diagram
Troy-bilt Reverse Spring
Part #1916724
The manufacturer no longer makes this part, and there's no substitute part
Single tines/wheels/tires diagram
Troy-bilt Lh Tine Holder
Part #1916702
The manufacturer no longer makes this part, and there's no substitute part
Transmission assembly diagram
Troy-bilt Depth Regulator Lever
Part #GW-55018
The manufacturer no longer makes this part, and there's no substitute part
Troy-bilt Washer
Part #1107382
The manufacturer no longer makes this part, and there's no substitute part
Handle/cable assembly diagram
Troy-bilt Bail, Forward Clutch
Part #1917479
The manufacturer no longer makes this part, and there's no substitute part
Transmission housing diagram
Troy-bilt Rear Bearing Cap
Part #718-04008
The manufacturer no longer makes this part, and there's no substitute part
Transmission assembly diagram
Troy-bilt Channel Support Bracket
Part #1916707
The manufacturer no longer makes this part, and there's no substitute part
Transmission housing diagram
Troy-bilt Rear Cover, Transmission
Part #1918377
The manufacturer no longer makes this part, and there's no substitute part
Transmission housing diagram
Troy-bilt Housing Cover Gasket
Part #GW-50032
The manufacturer no longer makes this part, and there's no substitute part
Transmission assembly diagram
Troy-bilt Reverse Stop Arm
Part #1916570
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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