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Husqvarna
Rear-Engine Riding Mower

Model # RZ4219 Official Husqvarna tractor

Here are the diagrams and repair parts for Official Husqvarna RZ4219 tractor, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 331 parts  |
Mulching Blade 777134149
#13

42" deck diagram

Mulching blade

Part #777134149

Replaced by #532134149

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Manufacturer substitution
This part replaces 777134149. Substitute parts can look different from the original.
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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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Craftsman Lawn Tractor Shoulder Bolt 539107608
Craftsman lawn tractor shoulder bolt

Part #539107608

Replaced by #596434404

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Manufacturer substitution
This part replaces 539107608. Substitute parts can look different from the original.
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Ignition.swi 539107541
Ignition.swi

Part #539107541

Replaced by #175566

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Manufacturer substitution
This part replaces 539107541. Substitute parts can look different from the original.
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Hinge Rod 539110462
Hinge rod

Part #539110462

Replaced by #595297001

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Manufacturer substitution
This part replaces 539110462. Substitute parts can look different from the original.
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Nut.9/16.top 539107590
Nut.9/16.top

Part #539107590

Replaced by #596134801

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Manufacturer substitution
This part replaces 539107590. Substitute parts can look different from the original.
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Lawn Tractor Muffler (replaces 188655, 5321886-55, 580532301) 532188655
#33

Engine plate-965881201 diagram

Lawn tractor muffler (replaces 188655, 5321886-55, 580532301)

Part #532188655

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Lawn Tractor Washer 539990118
#10

Hydraulic pump-motor diagram

Lawn tractor washer

Part #539990118

Replaced by #596238701

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This part replaces 539990118. Substitute parts can look different from the original.
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Lawn Mower Blade 777405380
#4

46" deck diagram

Lawn mower blade

Part #777405380

Replaced by #405380

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Manufacturer substitution
This part replaces 777405380. Substitute parts can look different from the original.
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Lawn Tractor Washer 539990122
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.
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Why is my riding mower not cutting evenly?

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

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Why won't my riding mower start?

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

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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…

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

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

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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…

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

Main causes: faulty battery, bad alternator…

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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

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 move?

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

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