Hydro-Gear
Engine & Drivetrain

Model # 310-0750 Official Hydro-Gear hydro-gear transaxle

Here are the diagrams and repair parts for Official Hydro-Gear 310-0750 hydro-gear 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.

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 56 parts  |

Lawn Tractor Transaxle Wheel Axle Oil Seal (replaces 532142961) 142961
#53

Hydro gear transaxle diagram

Lawn tractor transaxle wheel axle oil seal (replaces 532142961)

Part #142961

This item is not returnable
$5.29
16% OFF Phone Price : $6.29
In Stock
Nut.cas.hyd. 144607
#134

Hydro gear transaxle diagram

Nut.cas.hyd.

Part #144607

Replaced by #532122658

?
Manufacturer substitution
This part replaces 144607. Substitute parts can look different from the original.
This item is not returnable
In Stock
Actuating Arm 142954
#37

Hydro gear transaxle diagram

Actuating arm

Part #142954

Replaced by #583156301

?
Manufacturer substitution
This part replaces 142954. Substitute parts can look different from the original.
In Stock
Lip Seal 142932
#3

Hydro gear transaxle diagram

Lip seal

Part #142932

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

Bolt 142964
#58

Hydro gear transaxle diagram

Bolt

Part #142964

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

Arm 142939
#14

Hydro gear transaxle diagram

Arm

Part #142939

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

Spring 142977
#92

Hydro gear transaxle diagram

Spring

Part #142977

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

Block 142944
#23

Hydro gear transaxle diagram

Block

Part #142944

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

Brake 142958
#41

Hydro gear transaxle diagram

Brake

Part #142958

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

Pin 142965
#59

Hydro gear transaxle diagram

Pin

Part #142965

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

Most common symptoms to help you fix your tillers

Choose a symptom to see related tiller repairs.

Main causes: clutch cable problems, faulty transmission…

Main causes: damaged tines, broken clevis pins, worn drive belt, faulty transmission, clutch cable problems, improper de…

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

Main causes: leaky engine head gasket, damaged sump gasket, damaged oil drain plug seal, loose or cracked fuel line, lea…

Main causes: broken shaft clevis pins, transmission failure…

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

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

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.

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…

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.

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.…

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.…

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.…