Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
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.

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.

Owner’s manual

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 311 parts  |
Lock Washer 1100242
Lock washer

Part #1100242

The manufacturer no longer makes this part, and there's no substitute part

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
$6.91
In Stock
Washer 50027
#39

Power unit transmission assemblies diagram

Washer

Part #50027

Replaced by #GW-50027

?
Manufacturer substitution
This part replaces 50027. Substitute parts can look different from the original.
This item is not returnable
$10.94
In Stock
Tiller Ratchet 1900856010
#7

Handlebar assembly diagram

Tiller ratchet

Part #1900856010

Replaced by #1900856010

?
Manufacturer substitution
This part replaces 1900856010. Substitute parts can look different from the original.
$53.96
In Stock
Cover 20873
#2

Tiller attachment transmission diagram

Cover

Part #20873

Replaced by #GW-20873

?
Manufacturer substitution
This part replaces 20873. Substitute parts can look different from the original.
$122.60
In Stock
Lever 2574
#1

Pto drive lever and yoke assembly diagram

Lever

Part #2574

Replaced by #647-04006

?
Manufacturer substitution
This part replaces 2574. Substitute parts can look different from the original.
$152.22
In Stock
Link 1900860010
#10

Pto drive lever and yoke assembly diagram

Link

Part #1900860010

Replaced by #1900860001

?
Manufacturer substitution
This part replaces 1900860010. Substitute parts can look different from the original.
$27.29
In Stock
Throttle Cable 1909286
#16A

Handlebar assembly diagram

Throttle cable

Part #1909286

Replaced by #1909286P

?
Manufacturer substitution
This part replaces 1909286. Substitute parts can look different from the original.
$75.25 | 
6% OFF Phone Price : $80.25
In Stock
Screw 1902004
#24

Power unit transmission assemblies diagram

Screw

Part #1902004

Replaced by #1902004

?
Manufacturer substitution
This part replaces 1902004. Substitute parts can look different from the original.
$13.71
In Stock
Roller Assembly 2232
#7

Pto drive lever and yoke assembly diagram

Roller assembly

Part #2232

Replaced by #686-04006

?
Manufacturer substitution
This part replaces 2232. Substitute parts can look different from the original.
$105.36
In Stock

Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

View all

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

Main causes: clutch cable problems, faulty transmission…

Read more

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…

Read more

Why won't my tillers wheels or tines turn?

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

Read more

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…

Read more

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

Main causes: broken shaft clevis pins, transmission failure…

Read more

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

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

Read more

Why won't my tiller's engine start?

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

Read more

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.

View all
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…

Read more
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.

View all
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.…

Read more
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.…

Read more
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.…

Read more

Parts & More