Husqvarna GT48XLSI Parts Manual

The Husqvarna GT48XLSI is a 48-inch riding lawn tractor featuring a powerful engine, hydrostatic transmission, heavy-duty cutting deck, ergonomic operator station, and durable construction for residential and light commercial use. This manual provides detailed parts identification, diagrams, and ordering information to assist with maintenance, repair, and replacement of components. Below are key sections covering parts overview, assembly groups, specifications, and ordering procedures.

1. Parts Overview & Identification 2. Assembly Groups & Diagrams 3. Specifications 4. Engine Components 5. Cutting Deck & Blade System 6. Drive Train & Transmission 7. Controls & Operator Station 8. Electrical System 9. Frame & Body Parts 10. Fasteners & Hardware 11. Ordering Parts & Support

Parts Overview & Identification

Key components: Engine assembly, Cutting deck, Transmission, Control panel, Seat, Wheels and tires, Electrical system, Frame and body.

Component Group	Description
Engine Assembly	Includes engine, mounting hardware, fuel system, and cooling components
Cutting Deck	48-inch fabricated steel deck with blade spindles, belts, and guards
Transmission	Hydrostatic drive system with linkage and fluid components
Control Panel	Ignition switch, throttle, blade engagement, and hour meter
Operator Station	Seat, seat suspension, steering wheel, and pedal assembly
Electrical System	Battery, wiring harness, starter, alternator, and safety switches
Frame & Body	Main frame, fenders, hood, and decorative panels
Wheels & Tires	Front and rear wheels, tires, and axle components
Fasteners	Bolts, nuts, washers, pins, and clips used throughout assembly
Belts & Pulleys	Drive belts, deck belts, and associated pulleys

Assembly Groups & Diagrams

Refer to exploded-view diagrams for part location and relationship.

Engine Group: Diagram shows engine, muffler, air filter, carburetor, and mounting.
Deck Group: Diagram illustrates deck shell, spindle assemblies, belt routing, and anti-scalp rollers.
Transmission Group: Diagram displays hydrostatic unit, drive shaft, and control linkage.
Control Group: Diagram details steering column, pedal assembly, and control levers.
Electrical Group: Diagram outlines wiring harness routing and component connections.

WARNING! Use diagrams for reference only. Disconnect spark plug and battery before servicing.

Specifications

Model: GT48XLSI Riding Lawn Tractor.
Cutting Width: 48 inches (122 cm).
Engine: Manufacturer and HP as specified (e.g., Briggs & Stratton, Kohler).
Transmission: Hydrostatic, infinite forward/reverse speeds.
Deck Material: Fabricated steel.
Fuel Capacity: As per engine specification (typically 2-3 gallons).
Weight: Approx. 600 lbs (272 kg) without attachments.
Seat: High-back, adjustable with suspension.

Engine Components

Includes all parts related to the engine assembly. Common replacement parts: air filter, spark plug, oil filter, fuel filter, carburetor kit, muffler, starter motor, ignition coil.

Part Numbers Example (Illustrative): Air Filter - 123456, Spark Plug - 789012, Oil Filter - 345678.

Refer to engine manufacturer's specific manual for detailed engine parts and service intervals.

Cutting Deck & Blade System

48-inch deck parts: Deck shell, Blade spindle assemblies (includes spindle housing, bearing, seal), Blades (high-lift), Deck belt, Idler pulleys and arms, Mandrel covers, Anti-scalp rollers and brackets.

Identify deck model number on deck label.
Use deck-specific diagram for spindle and belt routing.
Blades are left-hand and right-hand thread; note orientation during replacement.

Tip: Always balance blades after sharpening or replacement.

Drive Train & Transmission

Hydrostatic transmission assembly: Transmission unit, Drive shaft, Linkage rods and bushings, Hydraulic fluid filter, Cooling fan, Axle and differential components.

Maintenance Parts: Hydro fluid, Filter, Fan belt (if applicable).

CAUTION! Transmission service may require specialized tools. Consult service manual.

Controls & Operator Station

Steering: Steering wheel, Column, Gear, Tie rods. Pedals: Brake pedal, Cruise control pedal (if equipped), Linkage. Seat: Seat assembly, Suspension springs, Mounting brackets. Control Panel: Ignition switch, Key, Throttle control, Blade engage lever, Hour meter, Light switches.

Electrical System

Battery: Group U1 size, cables. Wiring: Main harness, Connectors, Fuses (20A, 15A). Switches: Seat safety switch, Brake switch, PTO switch. Gauges/Lights: Headlight bulbs, Taillight bulbs, Hour meter. Starting: Starter solenoid, Starter motor, Ignition switch.

WARNING! Disconnect battery negative terminal before working on electrical system.

Frame & Body Parts

Frame: Main welded frame, Front axle, Rear axle. Body: Hood, Grille, Fenders, Side panels, Decals. Footrests and floor mat.

Fasteners for body panels are often specific; refer to diagram for correct type and length.

Fasteners & Hardware

Includes all bolts, nuts, washers, pins, and clips. Organized by size and thread (e.g., 1/4-20, 5/16-18). Common hardware kits available for deck, engine mount, and body.

CAUTION! Use only grade-specified hardware for critical connections (e.g., blade spindles, steering).

Ordering Parts & Support

Step	Action	Details
1. Identify Model	Locate model & serial number plate	Found on frame under seat or near rear axle.
2. Find Part Number	Use manual diagrams or online parts lookup	Reference the "Part No." in diagrams.
3. Contact Dealer	Provide model, serial, and part number	Authorized Husqvarna dealer for genuine parts.
4. Online Ordering	Visit official parts website	Enter model number to view diagrams and order.
5. Support	For technical help or part identification	Contact Husqvarna Customer Support.

Model Number Example: 96043004500 (Illustrative).

Support: 1-800-HUSKY62; www.husqvarna.com/us/support