Husqvarna Z254F Parts Manual

The Husqvarna Z254F is a 54-inch zero-turn riding mower featuring a 26 HP Kohler 7000 Series engine, hydrostatic transmission, fabricated 10-gauge steel deck, dual-lever steering controls, and a comfortable high-back seat. This manual provides detailed parts diagrams, part numbers, and ordering information for maintenance and repair. Below are key sections for identification, engine parts, deck assembly, drive system, controls, and ordering.

Model Identification & Specifications

Locate the model and serial number plate on the frame behind the right rear wheel. Example: Z254F (Model) 1234567890 (Serial).

Specification	Description
Model	Z254F Zero-Turn Riding Mower
Engine	Kohler 7000 Series, 26 HP, 724cc, OHV
Cutting Width	54 inches (137 cm)
Deck Type	Fabricated 10-gauge steel, 3-blade
Transmission	Hydrostatic, dual-pump (Tuff Torq)
Speed Range	0-7 mph forward, 0-3.5 mph reverse
Fuel Capacity	3 gallons (11.4 liters)
Weight	Approx. 625 lbs (283 kg)
Wheel Size (Front)	13 x 6.5-6
Wheel Size (Rear)	20 x 10-10

Engine Components

Parts for the Kohler 7000 Series 26 HP engine (Model: KT740).

1. Air Filter: Replaceable dual-element filter (Part # 12 757 04-S).
2. Spark Plug: Champion RC12YC (Part # 12 132 01-S).
3. Oil Filter: Kohler spin-on filter (Part # 12 083 02-S).
4. Fuel Filter: In-line filter (Part # 532 40 26-05).
5. Starter Motor: 12V electric starter (Part # 532 19 26-06).
6. Carburetor: Complete assembly (Part # 24 757 20-S).
7. Muffler: Exhaust assembly (Part # 532 40 26-07).

WARNING! Disconnect spark plug wire before servicing engine. Use genuine Husqvarna parts.

Cutting Deck Assembly

54-inch fabricated deck parts diagram (Group: 11).

1. Deck Shell: Main housing (Part # 532 19 26-08).
2. Blades: High-lift, 18.5 inches (Part # 532 19 26-09).
3. Spindle Assembly: Includes bearings (Part # 532 19 26-10).
4. Deck Belt: 95.5-inch Kevlar belt (Part # 532 19 26-11).
5. Idler Pulleys: Tensioner assembly (Part # 532 19 26-12).
6. Skid Shoes: Adjustable wear parts (Part # 532 19 26-13).
7. Deck Lift Linkage: Manual lift rods (Part # 532 19 26-14).

CAUTION! Ensure deck is fully lowered and engine off before replacing blades.

Drive System & Transmission

Hydrostatic transmission (Tuff Torq K57) and drive components.

• Drive Belt: 82-inch (Part # 532 19 26-15).
• Hydrostatic Pumps: Dual-pump assembly (Part # 532 19 26-16).
• Drive Motors: Wheel motor assembly (Part # 532 19 26-17).
• Axle: Rear axle assembly (Part # 532 19 26-18).
• Hydraulic Fluid: 20W-50 motor oil or equivalent.
• Transmission Filter: Internal filter (Part # 532 19 26-19).
• Release Valves: Manual bypass levers (Part # 532 19 26-20).

Controls & Operator Station

Steering levers, seat, and control panel parts.

Steering Levers: Dual-handle control assembly (Part # 532 19 26-21).

Seat: High-back, suspension seat (Part # 532 19 26-22).

Ignition Switch: Key start (Part # 532 19 26-23).

Blade Engagement Knob: Electric PTO switch (Part # 532 19 26-24).

Throttle Control: Lever and cable (Part # 532 19 26-25).

Parking Brake: Lever assembly (Part # 532 19 26-26).

Footrest & Floor Mat: Operator platform (Part # 532 19 26-27).

Frame & Chassis

Main frame, wheels, and structural components.

1. Turn off mower, engage parking brake, and remove key.
2. Support frame securely when removing components.
3. Refer to frame diagram (Group: 20) for part locations.

Main Frame: Welded steel (Part # 532 19 26-28).

Front Axle: Pivot assembly (Part # 532 19 26-29).

Wheels & Tires: Complete assemblies (Part # 532 19 26-30).

Fenders: Rear fender assembly (Part # 532 19 26-31).

Tip: Inspect frame for cracks or damage during routine maintenance.

Electrical System

12V battery, wiring harness, switches, and lights.

1. Battery: 12V, 280 CCA (Part # 532 19 26-32).
2. Starter Solenoid: (Part # 532 19 26-33).
3. Voltage Regulator: (Part # 532 19 26-34).
4. Key Switch: (Part # 532 19 26-35).
5. Safety Switches: Seat, brake, PTO interlock (Part # 532 19 26-36).
6. Wiring Harness: Main harness (Part # 532 19 26-37).
7. Fuses: 20A and 30A blade fuses.

WARNING! Disconnect battery negative terminal before electrical work.

Belts & Pulleys

Drive and deck belt routing diagrams.

Belt	Part Number	Length/Type
Deck Drive Belt	532 19 26-11	95.5 inches
Main Drive Belt	532 19 26-15	82 inches
Idler Pulley	532 19 26-12	4-inch diameter
Spindle Pulley	532 19 26-38	5-inch diameter
Engine Pulley	532 19 26-39	6-inch diameter

Installation Tip: Ensure belts are routed correctly per diagram on deck underside.

Fasteners & Hardware

Common bolts, nuts, and clips used throughout mower.

M8 x 1.25 x 20mm Hex Bolt (Part # 532 19 26-40)

M8 Flange Nut (Part # 532 19 26-41)

M6 x 1.0 x 16mm Bolt (Part # 532 19 26-42)

5/16" Lock Washer (Part # 532 19 26-43)

Hairpin Cotter Pins (Part # 532 19 26-44)

Spring Tensioner (Part # 532 19 26-45)

Note: Use only grade 5 or higher hardware for structural connections.

Maintenance Parts

Recommended replacement parts for routine service.

• Oil: SAE 10W-30, 2 quarts (engine).
• Air Filter: Part # 12 757 04-S.
• Fuel Filter: Part # 532 40 26-05.
• Spark Plug (2): Part # 12 132 01-S.
• Blade Set (3): Part # 532 19 26-09.
• Deck Belt: Part # 532 19 26-11.
• Drive Belt: Part # 532 19 26-15.
• Grease: Lithium-based for fittings.

Parts Ordering & Support

Step	Action	Details
1	Identify Part	Use part number from manual or diagram.
2	Contact Dealer	Provide model (Z254F), serial number, and part number.
3	Online Ordering	Visit www.husqvarna.com/us/support/parts.
4	Phone Support	Call 1-800-487-5952 for parts assistance.
5	Warranty	Residential use: 3-year limited warranty; commercial: 1-year.

Reset: For electrical issues, disconnect battery for 5 minutes to reset controller.

Service: 1-800-487-5952; www.husqvarna.com