Husqvarna
Rear-Engine Riding Mower

Model #ZTHQL4218A (968999170) Husqvarna riding lawn mower

Here are the diagrams and repair parts for Husqvarna ZTHQL4218A-968999170 riding lawn mower, as well as links to manuals and error code tables, if available.


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    Showing 10 of 282 parts

    Lawn Tractor Fuel Tank

    #2A

    Main frame Diagram

    Lawn tractor fuel tank

    Part #539104409
    $234.77

    In Stock

    Lawn Tractor Starter Solenoid

    #15

    Wiring (kawasaki only) Diagram

    $18.17

    In Stock

    Hcs.1/2-13.x

    #50

    42" deck Diagram

    Hcs.1/2-13.x

    Part #539103433
    This item is not returnable
    $2.55

    In Stock

    Lawn Tractor Cotter Pin

    #45

    Main frame Diagram

    Lawn tractor cotter pin

    Part #539990365
    This item is not returnable
    $2.51

    In Stock

    Lawn Tractor 48-in Deck Blade

    #31

    48" deck Diagram

    $12.59

    In Stock

    Spring.rev.d

    #22

    Motion control Diagram

    Spring.rev.d

    Part #539103297
    This item is not returnable
    $5.25

    In Stock

    Lawn Tractor Axle Flange Bearing

    #24H

    Main frame Diagram

    Lawn tractor axle flange bearing

    Part #539102484
    This item is not returnable
    $3.66

    In Stock

    Lawn Tractor Spring

    #5

    Main frame Diagram

    Lawn tractor spring

    Part #539102845
    This item is not returnable
    $2.55

    In Stock

    Lawn Tractor Washer

    #15

    Main frame Diagram

    Lawn tractor washer

    Part #539990517
    This item is not returnable
    $2.55

    In Stock

    Hcs.5/16-18.

    #2

    Engine Diagram

    Hcs.5/16-18.

    Part #539990669
    This item is not returnable
    $2.55

    In Stock

    Symptoms common to all riding mowers & tractors

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

    Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, dirty carburetor
    Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components
    Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, broken fuel line
    Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim
    Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tune up
    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 mandrel pulleys
    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 tune up

    Repair guides common to all 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

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

    Repair difficulty
    Time required
     30 minutes or less
    January 1, 2015
    By Lyle Weischwill
    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
    January 1, 2015
    By Lyle Weischwill
    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

    Articles and videos common to all 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.

    May 1, 2017

    Riding lawn mower engine spins but won't start video

    By Sears PartsDirect staff

    Troubleshoot fuel, spark and compression issues.

    June 1, 2016

    How to mow a lawn for healthier grass

    By Erin Hynes

    How often and tall you mow your lawn has a big impact on its health. Check out these 3 rules.

    March 1, 2016

    How to change the Smart Switch Ignition password on a lawn tractor video

    By Sears PartsDirect staff

    See how to unlock the factory default start code so you can set your own passcode.