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Troybilt 21A-645A711 rear-tine tiller Parts
Here are the diagrams and repair parts for Troybilt 21A-645A711 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-645A711 Tillers
Bumper/wheel assembly diagram
Forward Arm
Part #786-04275Replaced by #786-04275-0637
Manufacturer substitutionThis part replaces 786-04275. Substitute parts can look different from the original.In Stock$45.6312% OFF Phone Price : $51.63
Qty
Transmission housing diagram
Oil Seal
Part #721-04030Replaced by #921-04030
Manufacturer substitutionThis part replaces 721-04030. Substitute parts can look different from the original.This item is not returnableIn Stock$18.8410% OFF Phone Price : $20.84QtyDriveshaft diagram
Shim
Part #GW-1224-1Replaced by #736-04308
Manufacturer substitutionThis part replaces GW-1224-1. Substitute parts can look different from the original.This item is not returnableIn Stock$8.09QtyTransmission housing diagram
Washer
Part #736-3008Replaced by #936-3008
Manufacturer substitutionThis part replaces 736-3008. Substitute parts can look different from the original.In Stock$10.4616% OFF Phone Price : $12.46QtyTine hood/handlebar diagram
Reverse Stop Arm
Part #786-04092Replaced by #786-04092-4044
Manufacturer substitutionThis part replaces 786-04092. Substitute parts can look different from the original.In Stock$61.14QtyBumper/wheel assembly diagram
Bumper
Part #749-04193Replaced by #749-04193-0637
Manufacturer substitutionThis part replaces 749-04193. Substitute parts can look different from the original.In Stock$77.58QtyLawn 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$7.86QtyWheel shaft diagram
Shim
Part #GW-1166-5Replaced by #736-04257
Manufacturer substitutionThis part replaces GW-1166-5. Substitute parts can look different from the original.This item is not returnableIn Stock$7.29QtyTransmission housing diagram
Oil Seal
Part #721-04036Replaced by #921-04036
Manufacturer substitutionThis part replaces 721-04036. Substitute parts can look different from the original.This item is not returnableIn Stock$25.6319% OFF Phone Price : $31.63QtyTine hood/handlebar diagram
Lawn & Garden Equipment Cable Tie
Part #725-0157Replaced by #726-0178
Manufacturer substitutionThis part replaces 725-0157. Substitute parts can look different from the original.This item is not returnableIn Stock$25.35Qty
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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