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Troybilt 21A-675B766 tiller Parts
Here are the diagrams and repair parts for Troybilt 21A-675B766 tiller, as well as links to manuals and error code tables, if available.
Owner’s manual
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Browse Parts for 21A-675B766 Tillers
Wheel shaft / tiller shaft diagram
Oil Seal
Part #721-04034Replaced by #921-04034
Manufacturer substitutionThis part replaces 721-04034. Substitute parts can look different from the original.This item is not returnableIn Stock$36.72
Qty
Tine hood/bar assembly diagram
Support Bracket, Right-side
Part #1916701
The manufacturer no longer makes this part, and there's no substitute part
Tine hood/bar assembly diagram
Bar Assembly, Depth Adjustment
Part #1916186
The manufacturer no longer makes this part, and there's no substitute part
Row marker attachment (optional) diagram
Square Tubing
Part #GW-1591
The manufacturer no longer makes this part, and there's no substitute part
Tine/wheels/tires diagram
Rim Tire Assembly
Part #634-04032
The manufacturer no longer makes this part, and there's no substitute part
Belt,guide,pony/engine drive pulley diagram
Bracket Belt
Part #1918774
The manufacturer no longer makes this part, and there's no substitute part
Belt,guide,pony/engine drive pulley diagram
Ace Screw-hw M10
Part #1900396
The manufacturer no longer makes this part, and there's no substitute part
Row marker attachment (optional) diagram
Marker Arm - Extension Arm With Pin
Part #GW-1595
The manufacturer no longer makes this part, and there's no substitute part
Row marker attachment (optional) diagram
Thumbscrew
Part #GW-9786
The manufacturer no longer makes this part, and there's no substitute part
Row marker attachment (optional) diagram
Bar Stop
Part #GW-1593
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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