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
Hydro-Gear
Engine & Drivetrain

Model # 331-3000 Official Hydro-Gear transaxle

Here are the diagrams and repair parts for Official Hydro-Gear 331-3000 transaxle, 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.

Error Codes

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 113 parts  |
Lawn Tractor Transaxle Sealant 178322
#79

Hydro gear transaxle diagram

Lawn tractor transaxle sealant

Part #178322

$76.42
In Stock
Compression 170417
#151

Hydro gear transaxle diagram

Compression

Part #170417

Replaced by #583001401

?
Manufacturer substitution
This part replaces 170417. Substitute parts can look different from the original.
This item is not returnable
$8.54
In Stock
Seal.1" (507 161157
#75

Hydro gear transaxle diagram

Seal.1" (507

Part #161157

Replaced by #583000201

?
Manufacturer substitution
This part replaces 161157. Substitute parts can look different from the original.
$24.09 | 
20% OFF Phone Price : $30.09
In Stock
Filter 178321
#55

Hydro gear transaxle diagram

Filter

Part #178321

Replaced by #583087401

?
Manufacturer substitution
This part replaces 178321. Substitute parts can look different from the original.
$94.27 | 
6% OFF Phone Price : $100.27
In Stock
Bearing 142934
#8

Hydro gear transaxle diagram

Bearing

Part #142934

Replaced by #532122745

?
Manufacturer substitution
This part replaces 142934. Substitute parts can look different from the original.
$101.96
In Stock
Spring.neutr 184702
#46

Hydro gear transaxle diagram

Spring.neutr

Part #184702

Replaced by #583135901

?
Manufacturer substitution
This part replaces 184702. Substitute parts can look different from the original.
$17.11
In Stock
Spacer #2371 170411
#130

Hydro gear transaxle diagram

Spacer #2371

Part #170411

Replaced by #583001201

?
Manufacturer substitution
This part replaces 170411. Substitute parts can look different from the original.
This item is not returnable
$11.97
In Stock
Return Arm 178318
#34

Hydro gear transaxle diagram

Return arm

Part #178318

Replaced by #583087201

?
Manufacturer substitution
This part replaces 178318. Substitute parts can look different from the original.
$38.64
In Stock
Friction Stud 170421
#36

Hydro gear transaxle diagram

Friction stud

Part #170421

Replaced by #582998501

?
Manufacturer substitution
This part replaces 170421. Substitute parts can look different from the original.
$13.69
In Stock
Plug 150800
#108

Hydro gear transaxle diagram

Plug

Part #150800

Replaced by #582976201

?
Manufacturer substitution
This part replaces 150800. Substitute parts can look different from the original.
$10.26
In Stock

Most common symptoms to help you fix your cooktops

Choose a symptom to see related cooktop repairs.

View all

Why isn't my cooktop working at all?

Main causes: lack of electrical power, gas supply failure, bad pressure regulator, control system failure…

Read more

Repair guides for gas cooktops

View all
How to replace a spark module on a gas cooktop

How to replace a spark module on a gas cooktop

No flame on your gas cooktop? Installing a new spark module could be the fix you need.…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a spark igniter switch on a gas cooktop

How to replace a spark igniter switch on a gas cooktop

Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…

Read more
Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your cooktops

Use the advice and tips in these articles and videos to get the most out of your cooktop.

View all
5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

Read more
How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

Read more
Cooktop common questions

Cooktop common questions

These common questions can help you make the most of your cooktop.…

Read more

Parts & More