Husqvarna YTH1942 Parts Manual

The Husqvarna YTH1942 is a 42-inch riding lawn tractor equipped with a 19 HP Briggs & Stratton engine, hydrostatic transmission, and a durable cutting deck. This manual provides detailed parts identification, exploded diagrams, and ordering information for maintenance and repair. Below are key sections covering safety, parts lists, diagrams, specifications, and ordering procedures.

1. Parts at a Glance 2. Safety Parts & Labels 3. Engine Components 4. Cutting Deck Assembly 5. Drive & Transmission 6. Electrical System 7. Frame & Body 8. Specifications 9. Parts Ordering 10. Warranty Information 11. Troubleshooting Parts Issues

Parts at a Glance

Key components: 19 HP Briggs & Stratton Engine, 42-inch Cutting Deck, Hydrostatic Transmission, Steering Assembly, Seat, Battery, and Mower Blades.

Part Category	Description
Engine Assembly	Complete 19 HP engine with air filter, oil filter, spark plug
Cutting Deck	42-inch stamped steel deck with blades, spindles, and belt
Drive System	Hydrostatic transmission, drive belt, pulleys
Electrical	Battery, starter, ignition switch, wiring harness
Controls	Steering wheel, brake pedal, throttle, PTO lever
Frame & Body	Chassis, fenders, seat, hood
Safety Components	Blade brake clutch, seat switch, safety labels
Fasteners	Bolts, nuts, washers, pins specific to model
Filters & Fluids	Air filter, oil filter, fuel filter, recommended oils
Wheels & Tires	Front and rear tires, rims, axle components

Safety Parts & Labels

Critical safety components must be inspected and replaced if damaged to ensure safe operation.

Blade Brake Clutch (PTO): Stops blades within 3 seconds when disengaged.
Seat Safety Switch: Engine stops if operator leaves seat with PTO engaged.
Safety Labels: Replace if faded, damaged, or illegible (part numbers provided).
Brake System: Inspect brake pedal, linkage, and disc for wear.

WARNING! Never operate with missing or damaged safety parts. Replace only with genuine Husqvarna parts.

Engine Components

19 HP Briggs & Stratton Engine (Model 44N877).

Air Filter: Replace annually or per operating conditions.
Spark Plug: Champion RC12YC gap 0.030".
Oil Filter: Briggs & Stratton 492932S.
Fuel Filter: In-line filter part #532401855.
Starter Motor: 12V electric starter.
Carburetor: Complete assembly and gaskets.

CAUTION! Disconnect spark plug wire before servicing engine components.

Cutting Deck Assembly

Deck Shell: 42-inch stamped steel, part #532401134.
Blades: Mulching blades, part #532401256 (set of 3).
Spindles: Includes bearings and pulleys, part #532185354.
Deck Belt: ½" x 95" Kevlar reinforced, part #532401867.
Mandrels: Blade attachment assemblies.
Deck Wheels: Anti-scalp rollers.
PTO Clutch: Electric engagement clutch.

Drive & Transmission

Hydrostatic Transmission (Tuff Torq K46).

Transmission Assembly: Complete unit part #532401932.

Drive Belt: Part #532401859. Idler Pulleys: Part #532185412. Axle: Rear axle assembly with hubs. Brake: Disc brake part #532401945. Linkage: Control rods and springs for speed/direction.

Electrical System

12V Electrical System with 230 CCA Battery.

Battery: 12V, 230 CCA, part #532401912.
Starter Solenoid: Part #532401923.
Ignition Switch: 5-position key switch.
Wiring Harness: Main harness part #532401978.
Fuses: 20A and 15A blade fuses.
PTO Switch: Engage/disengage switch.

Tip: Disconnect battery negative terminal before electrical work.

Frame & Body

Supports chassis, hood, fenders, seat, and steering.

Frame: Main chassis part #532401901.
Hood: Front hood assembly with grille.
Fenders: Rear fenders part #532401890.
Seat: High-back seat with suspension, part #532401902.
Steering: Wheel, column, and tie rods.
Tires: Front 15x6.00-6, Rear 20x10.00-8.

WARNING! Inspect frame for cracks or damage before operation.

Specifications

Engine: 19 HP Briggs & Stratton, OHV, 44N877. Transmission: Hydrostatic, Tuff Torq K46. Cutting Width: 42 inches. Fuel Capacity: 2.5 gallons. Oil Capacity: 1.5 quarts (SAE 30). Battery: 12V, 230 CCA. Tire Size: Front 15x6.00-6, Rear 20x10.00-8. Weight: 498 lbs. Warranty: 2-year limited warranty.

Parts Ordering

Use genuine Husqvarna parts for optimal performance and safety.

Identify part number from diagrams in this manual.
Contact authorized Husqvarna dealer with model (YTH1942) and serial number.
Order online at www.husqvarna.com using part number.
Keep receipt for warranty claims.

CAUTION! Non-genuine parts may void warranty and compromise safety.

Warranty Information

2-year limited warranty for residential use. Warranty covers defects in materials/workmanship. Not covered: normal wear, improper maintenance, misuse, non-genuine parts. For warranty service, contact authorized dealer with proof of purchase.

Troubleshooting Parts Issues

Symptom	Possible Cause	Corrective Action
Engine won't start	Bad battery, faulty spark plug	Test battery; replace spark plug; check fuel filter.
Poor cutting performance	Dull blades, worn deck belt	Sharpen/replace blades; inspect and replace deck belt.
Transmission slips	Low oil, worn drive belt	Check transmission oil level; replace drive belt.
Excessive vibration	Unbalanced blade, loose spindle	Balance or replace blade; tighten spindle bolts.
Electrical failure	Blown fuse, corroded connections	Replace fuse; clean battery terminals and connections.

Support: 1-800-487-5962; www.husqvarna.com