Dayco 22645 Accessory Drive Belt - Fan or Fan and Idler

Durable Dayco Accessory Drive Belt 22645 Overview

The Dayco 22645 accessory drive belt is engineered with a synthetic rubber compound designed to withstand a wide range of operating temperatures. This black, double cog belt offers reliable performance for various automotive applications, including many popular vehicle makes and models.

• Constructed from a synthetic rubber compound for durability
• Top width of 0.69 inches for precise fitment
• Effective length approximately 64.5 inches (1638.30 mm)
• Double cog belt construction enhances flexibility and grip
• Operates efficiently between -37.2°C and 79.4°C (-35°F to 175°F)
• Meets SAE J636 and SAE J637 industry standards

Technical Details and Construction

The Dayco 22645 accessory drive belt features a double cog design that improves bending flexibility and reduces heat buildup during operation. Its synthetic rubber compound material ensures resistance to wear and environmental factors, making it suitable for extended use in demanding engine conditions. The belt’s black color and 0.69-inch top width provide a precise fit for compatible accessory drive systems. With an outside circumference of approximately 65.14 inches (1654.56 mm), this belt is designed to maintain consistent tension and power transmission.

Compatible Vehicles and Applications

This accessory drive belt is compatible with a range of vehicles requiring a belt with these specific dimensions and construction. It is commonly used in accessory drive belt systems for makes such as Ford, Chevrolet, and Dodge, among others. The Dayco 22645 is suitable for models that specify a double cog belt with a top width near 0.69 inches and an effective length around 64.5 inches. Always verify fitment with your vehicle’s service manual or parts catalog.

• Replaces worn or cracked accessory drive belts
• Addresses slipping or squealing belt issues
• Restores proper accessory component function
• Prevents overheating caused by belt failure
• Improves engine accessory drive efficiency

Installation Notes and Tips

When installing the Dayco 22645 accessory drive belt, ensure the belt routing matches the vehicle manufacturer’s specifications. Inspect pulleys and tensioners for wear or damage before installation. Proper tension adjustment is critical to prevent premature belt wear or slippage. Use appropriate tools to avoid damaging the belt during installation.

Quality Assurance and Standards

Dayco 22645 accessory drive belt complies with SAE J636 and SAE J637 standards, ensuring consistent quality and performance. The belt’s material and construction are tested to operate reliably within a temperature range from -37.2°C to 79.4°C (-35°F to 175°F). While no specific warranty information is provided, Dayco products are manufactured to meet industry quality benchmarks for automotive belts.