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Troybilt 21A-643B711 rear-tine tiller Parts
Here are the diagrams and repair parts for Troybilt 21A-643B711 rear-tine tiller, as well as links to manuals and error code tables, if available.
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Browse Parts for 21A-643B711 Tillers
Driveshaft diagram
Washer
Part #GW-50043Replaced by #736-04304
Manufacturer substitutionThis part replaces GW-50043. Substitute parts can look different from the original.This item is not returnableIn Stock$8.09
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 : $20.84
QtyTine hood/handlebar diagram
Drive Cable
Part #746-04208Replaced by #946-04208
Manufacturer substitutionThis part replaces 746-04208. Substitute parts can look different from the original.In Stock$46.2811% OFF Phone Price : $52.28QtyTine hood/handlebar diagram
Reverse Cable
Part #746-04058Replaced by #946-04058
Manufacturer substitutionThis part replaces 746-04058. Substitute parts can look different from the original.In Stock$66.108% OFF Phone Price : $72.10QtyTransmission 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 : $12.46QtyTransmission housing diagram
Oil Seal
Part #721-04031Replaced by #921-04031
Manufacturer substitutionThis part replaces 721-04031. Substitute parts can look different from the original.This item is not returnableIn Stock$19.939% OFF Phone Price : $21.93QtyWheel shaft diagram
Shim
Part #GW-1166-4Replaced by #736-04258
Manufacturer substitutionThis part replaces GW-1166-4. Substitute parts can look different from the original.This item is not returnableIn Stock$7.29QtyWheel shaft diagram
Shim
Part #GW-1132-2Replaced by #736-04310
Manufacturer substitutionThis part replaces GW-1132-2. Substitute parts can look different from the original.This item is not returnableIn Stock$6.63QtyDriveshaft 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$8.09QtyTine hood/handlebar diagram
Nut
Part #712-0291Replaced by #912-0291
Manufacturer substitutionThis part replaces 712-0291. Substitute parts can look different from the original.This item is not returnableIn Stock$7.77Qty
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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