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 # ZT2800 Official Hydro-Gear transaxle

Here are the diagrams and repair parts for Official Hydro-Gear ZT2800 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 81 parts  |
Seat Assembly 71442
Seat assembly

Part #71442

Replaced by #401042

?
Manufacturer substitution
This part replaces 71442. Substitute parts can look different from the original.
BEST SELLER
$183.49 | 
5% OFF Phone Price : $193.49
In Stock
Oil Filter 421186
#23

Transaxle-left hand diagram

Oil filter

Part #421186

Replaced by #539113466

?
Manufacturer substitution
This part replaces 421186. Substitute parts can look different from the original.
$35.09 | 
12% OFF MSRP : $40.00
In Stock
Lawn Tractor Transaxle Oil Filter (replaces Hg-52114, Hg-52114p) 52114
#23

Transaxle-right hand diagram

Lawn tractor transaxle oil filter (replaces hg-52114, hg-52114p)

Part #52114

This item is not returnable
$23.79 | 
17% OFF Phone Price : $28.79
In Stock
Bolt 51630
Bolt

Part #51630

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

Main Housing Kit 71413
#1

Transaxle-right hand diagram

Main housing kit

Part #71413

$215.31
In Stock
Geroter Assembly 50273
Geroter assembly

Part #50273

$28.87
In Stock
Washer 44130
Washer

Part #44130

This item is not returnable
$2.26
In Stock
Flat Washer 44371
Flat washer

Part #44371

This item is not returnable
$2.31
In Stock
Plug 9005110-5600
Plug

Part #9005110-5600

This item is not returnable
$6.69
In Stock
Thrust Bearing 50551
Thrust bearing

Part #50551

$23.83
In Stock

Most common symptoms to help you fix your water heaters

Choose a symptom to see related water heater repairs.

View all

Why isn't my water heater making the water hot enough?

Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess…

Read more

Why is there water in my water heater's drain pan?

Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element,…

Read more

Why does my hot water smell like rotten eggs?

Main causes: water supply needs chlorine treatment, anode rod too reactive…

Read more

Why isn't my water heater heating my water?

Main causes: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failu…

Read more

Why isn't my water heater making enough hot water?

Main causes: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve asse…

Read more

Why is my water heater making the water too hot?

Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen…

Read more

Why is my water heater's pressure relief valve dripping water?

Main causes: faulty pressure relief valve, water is overheating…

Read more

Repair guides for electric water heaters

View all
How to replace a water heater element

How to replace a water heater element

If your water heater runs out of hot water quickly and one of the two heating elements has failed, replace the element f…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace an electric water heater thermostat

How to replace an electric water heater thermostat

If the water temperature fluctuates or you don't get enough hot water, follow these instructions to replace your water h…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a water heater temperature and pressure (T&P) relief valve

How to replace a water heater temperature and pressure (T&P) relief valve

Replace a broken temperature/pressure (T&P) relief valve on an electric water heater using these instructions.…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your water heaters

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

View all
Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

Read more
Using a wiring schematic to trace a current video

Using a wiring schematic to trace a current video

Find out what’s wrong with your appliance by following a circuit.…

Read more
Easy DIY water heater repairs

Easy DIY water heater repairs

Read about some water heater repairs that you can easily do yourself.…

Read more

Parts & More