Hydro-Gear
Engine & Drivetrain

Model # G7-BCBB-1XDC-1ECX Official Hydro-Gear transaxle

Here are the diagrams and repair parts for Official Hydro-Gear G7-BCBB-1XDC-1ECX 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 83 parts  |

Lawn Tractor Transaxle Sealant 178322
#13

Transaxle diagram

Lawn tractor transaxle sealant

Part #178322

In Stock
Compression 170417
#178

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
In Stock
Seal.1" (507 161157
#96

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
Shaft Kit 421224
#210

Transaxle diagram

Shaft kit

Part #421224

Replaced by #584339601

?
Manufacturer substitution
This part replaces 421224. Substitute parts can look different from the original.
In Stock
Brake Yoke 178329
#212

Transaxle diagram

Brake yoke

Part #178329

Replaced by #583087901

?
Manufacturer substitution
This part replaces 178329. Substitute parts can look different from the original.
In Stock
Ball Bearing 169535
#95

Transaxle diagram

Ball bearing

Part #169535

Replaced by #583031301

?
Manufacturer substitution
This part replaces 169535. Substitute parts can look different from the original.
In Stock
Breather Kit 421227
#216

Transaxle diagram

Breather kit

Part #421227

Replaced by #532421227

?
Manufacturer substitution
This part replaces 421227. Substitute parts can look different from the original.
In Stock
Spacer #2371 170411
#183

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
In Stock
Bolt 142892
#175

Transaxle diagram

Bolt

Part #142892

Replaced by #584281501

?
Manufacturer substitution
This part replaces 142892. Substitute parts can look different from the original.
This item is not returnable
$5.31
16% OFF Phone Price : $6.31
In Stock
Screw 178343
#134

Transaxle diagram

Screw

Part #178343

Replaced by #582207101

?
Manufacturer substitution
This part replaces 178343. Substitute parts can look different from the original.
This item is not returnable
In Stock

Most common symptoms to help you fix your riding mowers & tractors

Choose a symptom to see related riding mower and lawn tractor repairs.

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

Main causes: faulty battery, bad alternator…

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

Main causes: shift lever needs adjustment, neutral control needs adjustment…

Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

Most common repair guides to help fix your riding mowers & tractors

These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.

How to replace a riding lawn mower rear tire

How to replace a riding lawn mower rear tire

Your mower can’t run on a damaged rear tire. Here’s how to install a new one.…

Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower blade

How to replace a riding lawn mower blade

If a blade on your mower is dull or bent, replace it following the steps in this repair guide.…

Repair difficulty
Time required
 30 minutes or less
How to replace a riding lawn mower fuel filter

How to replace a riding lawn mower fuel filter

Help your mower run better by replacing the fuel filter during your riding mower's annual tune-up.…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your riding mowers & tractors

Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.

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.…

Riding lawn mower engine clicks but doesn't turn over video

Riding lawn mower engine clicks but doesn't turn over video

Check the starter solenoid, starter motor, wiring, battery and engine.…