139573 Primary Deck Belt for Husqvarna 532139573 GTH220 GT190 GTH2250 GTH 2250 XP GTH2550XP Craftsman AYP Poulan Lawn Mower - 1/2" x 83"

139573 Primary Deck Belt for Husqvarna 532139573 GTH220 GT190 GTH2250 GTH 2250 XP GTH2550XP Craftsman AYP Poulan Lawn Mower - 1/2" x 83"139573 Primary Deck Belt (1 2" x 83") Key Features Designed for primary deck drive applications. Constructed with high strength aramid fiber cords for increased heat and tension resistance. Wrapped outer cover provides protection against debris and abrasion. Resistant to oil, moisture, and extreme temperature fluctuations. Dimensions: 1 2 inch width x 83 inches effective length. Replaces Cross Reference Part Numbers Husqvarna: 139573, 532139573 AYP:

139573 Primary Deck Belt (1/2" x 83")

Key Features

• Designed for primary deck drive applications.
• Constructed with high-strength aramid fiber cords for increased heat and tension resistance.
• Wrapped outer cover provides protection against debris and abrasion.
• Resistant to oil, moisture, and extreme temperature fluctuations.
• Dimensions: 1/2 inch width x 83 inches effective length.

Replaces / Cross-Reference Part Numbers

• Husqvarna: 139573, 532139573
• AYP: 139573, 532139573, 158818
• Craftsman: 33156
• Stens: 265-274

Compatibility & Fitment

• Fits various Husqvarna models including GT190, GT200, GTH200, GTH220, GTH2250, GTH2550XP, YTH180, and SGT18H46.
• Compatible with select 46-inch and 50-inch mower decks.
• Designed for units equipped with 18 HP, 20 HP, and 22 HP Kohler engines.
• Compatible with equipment manufactured by AYP, Craftsman, and Poulan.

When to Replace

• Visible signs of fraying, cracking, or splitting along the belt edges or inner cord.
• Excessive slipping or loss of power transfer to the mower blades.
• Increased noise, vibration, or squealing during deck engagement.
• Noticeable stretching that prevents proper tensioning via the mower deck adjustment system.
• Glazing on the sides of the belt, indicating friction-related heat damage.

Installation Tips

• Engage the parking brake and remove the ignition key before performing any maintenance.
• Clean the deck pulleys of dirt and grass buildup to ensure proper seating.
• Lower the mower deck to its lowest position for improved access.
• Release the tension from the idler pulley system to allow for removal of the old belt.
• Verify that the new belt is correctly seated in all pulley grooves before applying tension.
• Test the engagement at a low engine RPM to ensure smooth movement before full-speed operation.