Husqvarna Z254 Parts Manual

The Husqvarna Z254 is a 54-inch zero-turn riding mower featuring a 26 HP Kohler 7000 Series engine, a fabricated 11-gauge steel cutting deck, Hydro-Gear EZT transaxles, and a comfortable high-back seat. This parts manual provides detailed diagrams, part numbers, and ordering information for maintenance, repair, and replacement of components. Below are key sections covering identification, deck assembly, engine, drive system, controls, and troubleshooting.

1. Model Identification & Specifications 2. Safety & Precautions 3. Cutting Deck Assembly Parts 4. Engine & Related Components 5. Drive System & Transaxles 6. Control Panel & Steering Levers 7. Seat & Frame Components 8. Wheels, Tires & Spindles 9. Electrical System & Wiring 10. Belts, Pulleys & Blades 11. Parts Ordering & Troubleshooting

Model Identification & Specifications

Locate the model and serial number plate on the frame near the right rear wheel. Key specifications for the Z254 model.

Feature	Description
Model	Husqvarna Z254
Cutting Width	54 inches
Engine	26 HP Kohler 7000 Series, OHV, 2-cylinder
Deck Material	Fabricated 11-gauge steel
Drive System	Hydro-Gear EZT transaxles (2)
Fuel Capacity	3.5 gallons
Transmission Control	Dual lever, lap bar steering
Blade Spindles	Sealed, greaseable
Seat	High-back, adjustable
Standard Tire Size	Front: 13x6.5-6, Rear: 20x10-8

Safety & Precautions

Always disconnect the spark plug wire before performing any maintenance or parts replacement.

Park on level ground, engage parking brake, and remove key.
Allow engine and components to cool completely.
Use genuine Husqvarna replacement parts to ensure fit and safety.
Refer to the service manual for torque specifications and procedures.

WARNING! Never operate the mower with damaged or missing parts. Replace worn components immediately.

Cutting Deck Assembly Parts

Complete breakdown of the 54-inch fabricated deck, including housing, baffles, and mounting hardware.

Deck Shell: Part # 532404855 (main housing).
Deck Baffles: Part # 532404856 (set of 3).
Deck Hanger Kit: Part # 581398901 (includes springs and brackets).
Deck Lift Linkage: Part # 532404857 (adjustable rods and levers).
Deck Wheels (Anti-Scalp): Part # 532404858 (set of 2).

Note: Deck belt and spindle parts are listed in separate sections.

Engine & Related Components

Engine Model: Kohler 7000 Series, 26 HP, Command Pro.
Air Filter: Part # 52-050-01-S (replaceable element).
Oil Filter: Part # 52-050-02-S (spin-on type).
Spark Plug: Part # 52-050-03-S (Champion RC12YC).
Fuel Filter: Part # 532404859 (in-line).
Starter Motor: Part # 532404860 (12V).
Carburetor Kit: Part # 532404861 (rebuild kit).
Muffler: Part # 532404862.

Drive System & Transaxles

Hydro-Gear EZT transaxles (left and right) with linkage and drive belt components.

Transaxle Assembly (each): Part # 532404863. Drive Belt: Part # 532404864 (main drive to transaxles). Drive Pulleys: Part # 532404865 (engine and transaxle). Linkage Rods: Part # 532404866 (steering lever to transaxle). Hydrostatic Fluid: 20W-50 motor oil (per Hydro-Gear spec).

Ensure linkage is properly adjusted for neutral and full range of motion.

Control Panel & Steering Levers

Dashboard, ignition switch, lap bar steering levers, and related hardware.

Ignition Switch: Part # 532404867 (keyed).
Steering Lever (left/right): Part # 532404868 (each).
Control Panel Plate: Part # 532404869 (with labels).
Brake Cable: Part # 532404870 (parking brake).
PTO Switch: Part # 532404871 (electric clutch engagement).

Tip: Lubricate lever pivot points regularly with grease.

Seat & Frame Components

Seat assembly, seat switch, frame parts, and mounting brackets.

Seat Assembly: Part # 532404872 (high-back, includes cushion).
Seat Switch: Part # 532404873 (safety interlock).
Frame Rails (left/right): Part # 532404874 (main structural).
Footrest Plate: Part # 532404875 (diamond plate).
Fender (left/right): Part # 532404876 (each).

WARNING! The seat switch is a critical safety device. Never bypass it.

Wheels, Tires & Spindles

Wheel assemblies, tires, spindles, and bearings for the cutting deck.

Component	Part Number	Notes
Front Wheel Assembly	532404877	Includes tire, wheel, and bearings
Rear Wheel Assembly	532404878	Includes tire, wheel, and bearings
Spindle Assembly (each)	532404879	Complete with pulley and bearings
Spindle Bearing Kit	532404880	Replacement bearings and seal
Spindle Belt (deck)	532404881	Drives all three blades

Electrical System & Wiring

Battery, wiring harness, switches, and lighting components.

Battery: 12V, 280 CCA. Part # 532404882. Wiring Harness (main): Part # 532404883. Electric PTO Clutch: Part # 532404884. Key Switch: See Control Panel. Fuse: 20A blade fuse. Headlight Assembly (if equipped): Part # 532404885.

Belts, Pulleys & Blades

Replacement cutting blades, deck belt, idler pulleys, and tensioners.

Cutting Blade (each): Part # 532404886 (54-inch, high-lift).
Deck Belt (spindle drive): Part # 532404881 (as above).
Drive Belt (engine to transaxles): Part # 532404864 (as above).
Idler Pulley Assembly: Part # 532404887.
Belt Tensioner Spring: Part # 532404888.

CAUTION! Always balance blades after sharpening. Replace in sets of three.

Parts Ordering & Troubleshooting

Symptom	Possible Cause	Parts/Corrective Action
Uneven cut	Worn blades, deck out of level	Replace blades (532404886); adjust deck hangers (581398901).
Loss of drive power	Stretched drive belt, low transaxle fluid	Replace drive belt (532404864); check fluid level.
Deck vibration	Damaged spindle, unbalanced blade	Inspect/replace spindle assembly (532404879); replace blade.
Engine won't start	Bad battery, faulty seat switch	Test/replace battery (532404882); check seat switch (532404873).
PTO won't engage	Faulty clutch, blown fuse	Replace PTO clutch (532404884); check 20A fuse.

Parts Ordering: Contact an authorized Husqvarna dealer with your model and serial number. Use the part numbers provided.

Support: Husqvarna Customer Support: 1-800-487-5962; www.husqvarna.com/us/support