Troybilt
Rear-Tine Tiller

Model # 21C-64M1066 Official Troybilt rear-tine tiller

Here are the diagrams and repair parts for Official Troybilt 21C-64M1066 rear-tine tiller, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 104 parts  |

Yard Machines Lawn Tractor Flange Nut (replaces 00012173, Wd-129-103) 712-04065
#8

Handle/tine shields/tines diagram

Yard machines lawn tractor flange nut (replaces 00012173, wd-129-103)

Part #712-04065

BEST SELLER
This item is not returnable
$5.27
16% OFF Phone Price : $6.27
In Stock
Yard Machines Lawn & Garden Equipment Nut 712-04064
Yard machines lawn & garden equipment nut

Part #712-04064

BEST SELLER
This item is not returnable
$4.49
18% OFF Phone Price : $5.49
In Stock
Lawn Tractor Screw (replaces 01000628, 01000865, 1186307, 1186308, 791-180288, 791-683298, 910-0599) 710-0599
Lawn tractor screw (replaces 01000628, 01000865, 1186307, 1186308, 791-180288, 791-683298, 910-0599)

Part #710-0599

BEST SELLER
This item is not returnable
$4.91
17% OFF Phone Price : $5.91
In Stock
Yard Machines Lawn Tractor Bolt (replaces 01000668, 1982728, 1983620, 43001, 715326, 910-0253, 9711, B1100046, Gw-325284, Gw-750a, Gw-90012, Gw-9711, Gw-98068, Gw-98-068, Gw-b1100046, Gw-b70235, Gw-m6520008, Gw-pt/01395/00, Gw-pt/80153/00, Gw-t70235, Wd- 710-0514
#41

Handle/tine shields/tines diagram

Yard machines lawn tractor bolt (replaces 01000668, 1982728, 1983620, 43001, 715326, 910-0253, 9711, b1100046, gw-325284, gw-750a, gw-90012, gw-9711, gw-98068, gw-98-068, gw-b1100046, gw-b70235, gw-m6520008, gw-pt/01395/00, gw-pt/80153/00, gw-t70235, wd-

Part #710-0514

This item is not returnable
$5.33
16% OFF Phone Price : $6.33
In Stock
Lawn Tractor Spring (replaces 732-04276) 732-04276A
#14

Drive system diagram

Lawn tractor spring (replaces 732-04276)

Part #732-04276A

This item is not returnable
$13.52
13% OFF Phone Price : $15.52
In Stock
Belt 1916657
#26

Drive system diagram

Belt

Part #1916657

Replaced by #954-04090

?
Manufacturer substitution
This part replaces 1916657. Substitute parts can look different from the original.
This item is not returnable

Get free shipping with Automatic Reorder

$25.18
19% OFF Phone Price : $31.18
In Stock
Reverse Belt 1916658
#27

Drive system diagram

Reverse belt

Part #1916658

Replaced by #954-04091

?
Manufacturer substitution
This part replaces 1916658. Substitute parts can look different from the original.
This item is not returnable

Get free shipping with Automatic Reorder

$27.89
18% OFF Phone Price : $33.89
In Stock
Sears Lawn Mower Roller Wheel 756-0625
#30

Drive system diagram

Sears lawn mower roller wheel

Part #756-0625

This item is not returnable
$12.00
14% OFF Phone Price : $14.00
In Stock
Lawn Tractor Hex Bolt 710-3008
Lawn tractor hex bolt

Part #710-3008

This item is not returnable
$4.62
18% OFF Phone Price : $5.62
In Stock
Washer 736-0173
Washer

Part #736-0173

This item is not returnable
In Stock

Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

Main causes: clutch cable problems, faulty transmission…

Main causes: damaged tines, broken clevis pins, worn drive belt, faulty transmission, clutch cable problems, improper de…

Main causes: worn or broken drive belts, bad transmission, clutch cable problems…

Main causes: leaky engine head gasket, damaged sump gasket, damaged oil drain plug seal, loose or cracked fuel line, lea…

Main causes: broken shaft clevis pins, transmission failure…

Main causes: dirty carburetor, engine needs tune up, stale gas…

Main causes: carburetor failure, bad gasoline, dirty spark plug, broken recoil starter…

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

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 difficulty
Time required
 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.

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Find the right carburetor assembly for a Craftsman snowblower, tiller or log splitter

Find the right carburetor assembly for a Craftsman snowblower, tiller or log splitter

This chart will help you find the right carburetor for your Craftsman snowblower, tiller or log splitter.…