Husqvarna
Rear-Engine Riding Mower

Model # ZTHKH4820A (968999158) Official Husqvarna riding lawn mower

Here are the diagrams and repair parts for Official Husqvarna ZTHKH4820A-968999158 riding lawn mower, 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 282 parts  |

Switch 539101768
Switch

Part #539101768

Replaced by #582107601

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Manufacturer substitution
This part replaces 539101768. Substitute parts can look different from the original.
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$15.93
11% OFF Phone Price : $17.93
In Stock
Lawn & Garden Equipment Flat Washer 539990692
Lawn & garden equipment flat washer

Part #539990692

Replaced by #596134901

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Manufacturer substitution
This part replaces 539990692. Substitute parts can look different from the original.
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This item is not returnable
$2.56
28% OFF Phone Price : $3.56
In Stock
Lawn Tractor Screw 539976952
Lawn tractor screw

Part #539976952

Replaced by #596039001

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Manufacturer substitution
This part replaces 539976952. Substitute parts can look different from the original.
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This item is not returnable
$3.20
24% OFF Phone Price : $4.20
In Stock
Lawn Tractor Washer 539990122
#21

Park brake diagram

Lawn tractor washer

Part #539990122

Replaced by #596565301

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Manufacturer substitution
This part replaces 539990122. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
In Stock
Lawn Tractor Nut 539990585
#23

Motion control diagram

Lawn tractor nut

Part #539990585

Replaced by #596039201

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Manufacturer substitution
This part replaces 539990585. Substitute parts can look different from the original.
This item is not returnable
In Stock
Lawn Tractor Lock Washer 539990187
#7

Main frame diagram

Lawn tractor lock washer

Part #539990187

Replaced by #596238801

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Manufacturer substitution
This part replaces 539990187. Substitute parts can look different from the original.
This item is not returnable
In Stock
Lawn Tractor Bolt 539990799
Lawn tractor bolt

Part #539990799

Replaced by #596039401

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Manufacturer substitution
This part replaces 539990799. Substitute parts can look different from the original.
This item is not returnable
In Stock
Lawn Tractor Caster Wheel Spacer 539105543
#25

Main frame diagram

Lawn tractor caster wheel spacer

Part #539105543

This item is not returnable
$12.89
13% OFF Phone Price : $14.89
In Stock
Lawn Tractor Steering Damper (replaces 5391027-20) 539102720
#26

Motion control diagram

Lawn tractor steering damper (replaces 5391027-20)

Part #539102720

$46.30
11% OFF Phone Price : $52.30
In Stock
Lawn Tractor Washer 539990517
Lawn tractor washer

Part #539990517

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: faulty battery, bad alternator…

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

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

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

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

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

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

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

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

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 the starter motor on a riding lawn mower

How to replace the starter motor on a riding lawn mower

If you hear the solenoid click but don’t hear the starter motor spin when you turn the key, follow these steps to replac…

Repair difficulty
Time required
 30 minutes or less
How to rebuild a riding lawn mower carburetor

How to rebuild a riding lawn mower carburetor

Get your sputtering carburetor running smoothly in 60 minutes.…

Repair difficulty
Time required
 60 minutes or less
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

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.

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.…

How to clean the air filter in your lawn tractor

How to clean the air filter in your lawn tractor

Cleaning the air filter in a lawn tractor takes just minutes and improves engine performance.…

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…