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Troybilt
Rear-Tine Tiller

Model # 12090 Official Troybilt tiller

Here are the diagrams and repair parts for Official Troybilt 12090 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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Showing 10 of 311 parts  |
Tiller Shear Pin 1982612
#2

Bolo tine assemblies diagram

Tiller shear pin

Part #1982612

Replaced by #710-3096

?
Manufacturer substitution
This part replaces 1982612. Substitute parts can look different from the original.
This item is not returnable
$9.93 | 
9% OFF Phone Price : $10.93
In Stock
Screw 1100779
#11

Dozer/snow blade attachment diagram

Screw

Part #1100779

Replaced by #710-3180

?
Manufacturer substitution
This part replaces 1100779. Substitute parts can look different from the original.
This item is not returnable
$6.93 | 
13% OFF Phone Price : $7.93
In Stock
Scr-hh 1 2-1 1100057
#2

Dozer/snow blade attachment diagram

Scr-hh 1 2-1

Part #1100057

Replaced by #710-0182A

?
Manufacturer substitution
This part replaces 1100057. Substitute parts can look different from the original.
$13.60
In Stock
Worm Gear 1901976
#6

Tiller attachment transmission diagram

Worm gear

Part #1901976

Replaced by #1901976

?
Manufacturer substitution
This part replaces 1901976. Substitute parts can look different from the original.
$145.14 | 
8% OFF Phone Price : $157.14
In Stock
Hex Screw, 5/16-18 X 1-1 1100799
Hex screw, 5/16-18 x 1-1

Part #1100799

Replaced by #710-0805A

?
Manufacturer substitution
This part replaces 1100799. Substitute parts can look different from the original.
This item is not returnable
$7.43
In Stock
Lever 2628
#5

Belt drive system, engines, wheels diagram

Lever

Part #2628

Replaced by #GW-2628

?
Manufacturer substitution
This part replaces 2628. Substitute parts can look different from the original.
$172.84
In Stock
Brace 2659
#1

Bumper attachment diagram

Brace

Part #2659

Replaced by #1910730001

?
Manufacturer substitution
This part replaces 2659. Substitute parts can look different from the original.
$101.42
In Stock
Screw 1186310
#40

Power unit transmission assemblies diagram

Screw

Part #1186310

Replaced by #1186310

?
Manufacturer substitution
This part replaces 1186310. Substitute parts can look different from the original.
This item is not returnable
$6.14
In Stock
Hex Bolt 9572
#32

Belt drive system, engines, wheels diagram

Hex bolt

Part #9572

Replaced by #710-0672

?
Manufacturer substitution
This part replaces 9572. Substitute parts can look different from the original.
This item is not returnable
$6.77 | 
13% OFF Phone Price : $7.77
In Stock
Washer 1100245
Washer

Part #1100245

Replaced by #736-0921

?
Manufacturer substitution
This part replaces 1100245. Substitute parts can look different from the original.
$7.71
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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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.…

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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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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.…

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