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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.

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  • 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”.

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Error Codes

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ALL PARTS
Showing 10 of 108 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
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
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
Screw.thes 178787
#92

Hydro gear transaxle diagram

Screw.thes

Part #178787

Replaced by #583087801

?
Manufacturer substitution
This part replaces 178787. Substitute parts can look different from the original.
$11.97
In Stock
Ball Bearing 169535
#74

Hydro gear transaxle diagram

Ball bearing

Part #169535

Replaced by #583031301

?
Manufacturer substitution
This part replaces 169535. Substitute parts can look different from the original.
$66.64
In Stock

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