139573 Primary Deck Belt Replacement for Husqvarna 532139573 GTH220 GT190 GTH2250 GTH 2250 XP GTH2550XP GTH200 Craftsman AYP Poulan Lawn Mower Garden Tractor | 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, 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.