Dayco A070491 Serpentine Belt - Air Conditioning or Alternator and Tensioner

Reliable Serpentine Belt for Chevrolet and Saturn Vehicles

The Dayco A070491 serpentine belt is engineered to provide consistent performance for select Chevrolet and Saturn models. Designed with durable materials and precise specifications, this belt supports the accessory drive system to maintain optimal engine function.

• Material: EPDM with aramid reinforcement for enhanced durability
• Top Width: 0.96 inches
• Effective Length: 49.13 inches (1247.91 mm)
• Outside Circumference: 49.67 inches (1261.62 mm)
• Rib Quantity: 7 ribs with a straight rib profile
• Cross Section: K-section design
• Operating Temperature Range: -45°C to 100°C (-49°F to 212°F)
• Complies with SAE J1459 and SAE J2432 standards

Technical Details and Material Composition

The Dayco A070491 serpentine belt is constructed from EPDM rubber reinforced with aramid fibers, providing resistance to heat, wear, and stretching. Its 7-rib K-section cross section ensures proper grip and alignment on pulleys, reducing slippage and noise. The belt’s effective length of approximately 49.13 inches and outside circumference of 49.67 inches make it suitable for accessory drive systems in Chevrolet Malibu, Chevrolet Aura, and Saturn Vue models. The straight rib profile and standard rib depth contribute to consistent power transmission and longevity under varying operating temperatures.

Compatible Vehicles and Applications

This serpentine belt is compatible with the following vehicles:

• Chevrolet Malibu
• Chevrolet Aura
• Saturn Vue

It is designed to replace worn or damaged belts in the accessory drive belt system, ensuring reliable operation of components such as the alternator, power steering pump, and air conditioning compressor.

Common Issues Addressed by This Serpentine Belt

• Eliminates belt slippage and squealing noises
• Prevents premature belt wear and cracking
• Maintains proper tension and alignment in the accessory drive system
• Reduces risk of accessory component failure due to belt malfunction
• Improves overall engine accessory performance and efficiency

Installation Notes and Tips

When installing the Dayco A070491 serpentine belt, ensure the belt routing matches the vehicle’s accessory drive diagram. Inspect pulleys and tensioners for wear or damage before installation. Use a belt tension gauge or follow manufacturer specifications to achieve correct tension. Avoid twisting or forcing the belt during installation to prevent damage to the ribs or reinforcement fibers.

Quality Assurance and Standards Compliance

Dayco serpentine belts meet SAE J1459 and SAE J2432 standards, ensuring reliable performance under specified operating conditions. The EPDM and aramid reinforced construction provides resistance to heat and wear, supporting a maximum operating temperature of up to 100°C (212°F). While specific warranty details are not provided, Dayco products are manufactured to meet industry quality benchmarks for accessory drive belt components.