Dayco 5080865 Serpentine Belt - Alternator, Fan and Alternator or Main Drive

Durable Serpentine Belt for Ford F-250 and F-350 Super Duty

The Dayco 5080865 serpentine belt is engineered to meet the demanding requirements of Ford F-250 Super Duty and F-350 Super Duty trucks. Constructed with EPDM and aramid reinforcement, this belt offers reliable performance under a wide range of operating temperatures.

• Material: EPDM with aramid reinforcement for enhanced durability
• Top Width: 1.10 inches
• Effective Length: 86.50 inches (2197.10 mm)
• Outside Circumference: 87.06 inches (2211.33 mm)
• Rib Quantity: 8 ribs with a straight rib profile
• Cross Section: K-section design
• Operating Temperature Range: -45°C to 212°F (-42.7°C to 100°C)
• Meets SAE J1459 and SAE J2432 standards

Technical Overview of Dayco 5080865 Serpentine Belt

This serpentine belt is designed specifically for accessory drive belt systems in Ford F-250 Super Duty and F-350 Super Duty models. The EPDM (ethylene propylene diene monomer) material combined with aramid fiber reinforcement provides resistance to heat, wear, and stretching. The 8-rib K-section profile ensures optimal grip and power transmission to engine accessories such as the alternator, power steering pump, and air conditioning compressor. The belt’s effective length and outside circumference are precisely engineered to maintain proper tension and alignment within the accessory drive system.

Compatible Vehicles and Applications

The Dayco 5080865 serpentine belt is compatible with the following Ford models:

• Ford F-250 Super Duty
• Ford F-350 Super Duty

This belt is intended for use in accessory drive belt systems, helping to address common issues such as belt slippage, cracking, and premature wear.

• Prevents belt slippage under high load conditions
• Reduces risk of cracking and fraying due to temperature extremes
• Maintains consistent tension for accessory components
• Minimizes noise and vibration in the belt system
• Extends service life compared to standard belts

Installation Notes and Tips

When installing the Dayco 5080865 serpentine belt on Ford F-250 or F-350 Super Duty trucks, ensure the following:

• Verify belt routing matches the vehicle’s accessory drive diagram
• Inspect pulleys and tensioners for wear or damage before installation
• Use proper tensioning tools to achieve manufacturer-recommended belt tension
• Check for alignment to prevent premature belt wear
• Replace any worn components in the belt system to ensure optimal performance

Quality Assurance and Standards Compliance

The Dayco 5080865 serpentine belt complies with SAE J1459 and SAE J2432 standards, ensuring it meets industry requirements for durability and performance. Manufactured with high-quality EPDM and aramid reinforcement, this belt is designed to withstand operating temperatures ranging from -45°C to 212°F (-42.7°C to 100°C). While specific warranty details are not provided, Dayco products typically adhere to strict quality control processes to support reliable service life in demanding automotive applications.