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
Husqvarna
Rear-Engine Riding Mower

Model # MZ6128-966502301 Official Husqvarna zero-turn riding lawn mower

Here are the diagrams and repair parts for Official Husqvarna MZ6128-966502301 zero-turn riding lawn mower, 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.

Owner’s manual

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 304 parts  |
Nut.9/16.top 539107590
#5

Mowing deck diagram

Nut.9/16.top

Part #539107590

Replaced by #596134801

?
Manufacturer substitution
This part replaces 539107590. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Lawn & Garden Equipment Flat Washer 539990692
#25

Mowing deck diagram

Lawn & garden equipment flat washer

Part #539990692

Replaced by #596134901

?
Manufacturer substitution
This part replaces 539990692. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.56 | 
28% OFF Phone Price : $3.56
In Stock
Spacer Washer 539107520
#3

Mowing deck diagram

Spacer washer

Part #539107520

Replaced by #187690

?
Manufacturer substitution
This part replaces 539107520. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.99 | 
36% OFF MSRP : $4.69
In Stock
Lawn Tractor Washer 539990122
#4

Hydraulic pump-motor diagram

Lawn tractor washer

Part #539990122

Replaced by #596565301

?
Manufacturer substitution
This part replaces 539990122. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.16
In Stock
Lawn Tractor Fuel Tank (replaces 5391044-09) 539104409
#11

Ignition system diagram

Lawn tractor fuel tank (replaces 5391044-09)

Part #539104409

BEST SELLER
$145.17 | 
6% OFF Phone Price : $155.17
In Stock
Lawn Tractor Steering Damper (replaces 5391027-20) 539102720
#5

Steering diagram

Lawn tractor steering damper (replaces 5391027-20)

Part #539102720

$46.30 | 
10% OFF Phone Price : $51.30
In Stock
Exhaust Tube 532159955
#21

Engine plate diagram

Exhaust tube

Part #532159955

Replaced by #581881101

?
Manufacturer substitution
This part replaces 532159955. Substitute parts can look different from the original.
$27.29 | 
15% OFF Phone Price : $32.29
In Stock
Lawn Tractor Battery Brace 539107628
#2

Electrical diagram

Lawn tractor battery brace

Part #539107628

$8.74
In Stock
Lawn Tractor Throttle Cable 539112438
#3

Ignition system diagram

Lawn tractor throttle cable

Part #539112438

Replaced by #597873201

?
Manufacturer substitution
This part replaces 539112438. Substitute parts can look different from the original.
$29.99
In Stock
Lawn Tractor Shoulder Bolt 539107608
#15

Mowing deck diagram

Lawn tractor shoulder bolt

Part #539107608

This item is not returnable
$2.16
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

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

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

View all

How do I fix a flat tire on my riding mower?

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

Read more

Why does my riding mower run rough or misfire?

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

Read more

Why won't my riding mower move?

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

Read more

Why is the steering loose on my riding mower?

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

Read more

Why is my riding mower leaking oil or gas?

Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …

Read more

Why does my riding mower creep in neutral?

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

Read more

Why won't my riding mower cut grass?

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

Read more

Why does my riding mower deck vibrate?

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…

Read more

How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

Read more

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.

View all
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.…

Read more
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.…

Read more
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.…

Read more
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.

View all
How to remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer…

Read more
Charging a battery in a riding lawn mower video

Charging a battery in a riding lawn mower video

Learn how to use a battery charger if your mower battery is dead.…

Read more
Riding mower and tractor common questions

Riding mower and tractor common questions

You might find the answers to your questions about your riding mower or lawn tractor in this list of frequently asked qu…

Read more

Parts & More