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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.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 81 parts  |
Seat Assembly 71442
Seat assembly

Part #71442

Replaced by #401042

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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
Flat Washer 44371
Flat washer

Part #44371

This item is not returnable
$2.31
In Stock
Geroter Assembly 50273
Geroter assembly

Part #50273

$28.87
In Stock
Plug 9005110-5600
Plug

Part #9005110-5600

This item is not returnable
$6.69
In Stock
Hub Assembly 71446
Hub assembly

Part #71446

$80.04
In Stock
Washer 44130
Washer

Part #44130

This item is not returnable
$2.26
In Stock

Most common symptoms to help you fix your stand mixers

Choose a symptom to see related stand mixer repairs.

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Why does my stand mixer run on low speed, but rotate slowly?

Main causes: bad wiring connections, faulty speed control plate, electronic control board failure…

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Why does my stand mixer run on high speed only?

Main causes: phase control board failure, wiring connection problem, faulty electronic control board…

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Why does my stand mixer leak oil?

Main causes: bad lubricating grease, mixer sitting idle for weeks at a time, mixer running constantly for more than 30 m…

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Why is my stand mixer motor sparking?

Main cause: worn carbon motor brushes…

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Why isn't my stand mixer spinning?

Main causes: bad worm gear, damaged planetary gear assembly…

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Why do the stand mixer attachments rub the bottom of the bowl?

Main cause: attachment clearance setting needs adjustment…

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Why won't my stand mixer run at all?

Main causes: lack of electrical power, wiring failure, worn carbon motor brushes, bad drive motor, tripped overload swit…

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Most common repair guides to help fix your stand mixers

These step-by-step repair guides will help you safely fix what’s broken on your stand mixer.

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How to replace a stand mixer worm gear

How to replace a stand mixer worm gear

Here’s how to replace the worm gear in your stand mixer if it’s worn or damaged.…

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Repair difficulty
Time required
 30 minutes or less
How to replace a stand mixer phase control board

How to replace a stand mixer phase control board

The phase control board works with the governor and control plate to control motor speed. Replace the phase control boar…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace stand mixer motor brushes

How to replace stand mixer motor brushes

If the carbon brushes are worn and damaged, replace them using these steps.…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your stand mixers

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

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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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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.…

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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

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