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Troybilt
Rear-Tine Tiller

Model # 665B Official Troybilt tiller

Here are the diagrams and repair parts for Official Troybilt 665B tiller, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 194 parts  |
Lawn Tractor Screw (replaces 01000628, 01000865, 1186307, 1186308, 791-180288, 791-683298, 910-0599) 710-0599
#19

Hood-tine cover/bar diagram

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
Lock Washer 736-0119
Lock washer

Part #736-0119

Replaced by #936-0119

?
Manufacturer substitution
This part replaces 736-0119. Substitute parts can look different from the original.
This item is not returnable
$6.05 | 
14% OFF Phone Price : $7.05
In Stock
Ryobi Lawn Tractor Bolt (replaces 01000369, 1509-091, 1509-117, 153015, 706-10123-20, 706-501277-1, 710-0342, 910-3005) 710-3005
#13

Hood-tine cover/bar diagram

Ryobi lawn tractor bolt (replaces 01000369, 1509-091, 1509-117, 153015, 706-10123-20, 706-501277-1, 710-0342, 910-3005)

Part #710-3005

This item is not returnable
$5.11 | 
16% OFF Phone Price : $6.11
In Stock
Lawn & Garden Equipment Cable Tie 725-0157
#19

Handlebar/wheel gear control diagram

Lawn & garden equipment cable tie

Part #725-0157

Replaced by #726-0178

?
Manufacturer substitution
This part replaces 725-0157. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Ace Lawn & Garden Equipment Flange Lock Nut 712-3004A
#7

Stabilizer/cover/transmission pulley diagram

Ace lawn & garden equipment flange lock nut

Part #712-3004A

This item is not returnable
$4.92 | 
17% OFF Phone Price : $5.92
In Stock
Oil Seal 1983632
#5

Transmission diagram

Oil seal

Part #1983632

Replaced by #921-04044

?
Manufacturer substitution
This part replaces 1983632. Substitute parts can look different from the original.
$13.91
In Stock
Washer GW-9955
#5A

Handlebar/wheel gear control diagram

Washer

Part #GW-9955

Replaced by #736-04445

?
Manufacturer substitution
This part replaces GW-9955. Substitute parts can look different from the original.
This item is not returnable
$5.77
In Stock
Ace Oil Plug GW-9467
#9

Transmission diagram

Ace oil plug

Part #GW-9467

$8.74
In Stock
Ace Tiller Oil Seal 721-04001
#3

Transmission diagram

Ace tiller oil seal

Part #721-04001

This item is not returnable
$15.54
In Stock
Lawn & Garden Equipment Hex Bolt 710-0597
#6

Hood-tine cover/bar diagram

Lawn & garden equipment hex bolt

Part #710-0597

This item is not returnable
$5.80
In Stock

Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

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Why do my tiller's tines turn but the wheels don't?

Main causes: clutch cable problems, faulty transmission…

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Why does my tiller turn the soil poorly?

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

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Why won't my tillers wheels or tines turn?

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

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Why does my tiller's engine leak oil or gas?

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

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Why do my tiller's wheels turn but the tines don't?

Main causes: broken shaft clevis pins, transmission failure…

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Why does my tiller's engine run roughly or misfire?

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

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Why won't my tiller's engine start?

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

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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.

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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…

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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.

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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.…

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A guide to garden tillers

A guide to garden tillers

Rear tine tiller or front tine tiller, what to know to help in choosing the correct one for your needs.…

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Tiller common questions

Tiller common questions

These frequently asked questions might help you figure out what's wrong with your garden tiller.…

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