Dayco 17640 Accessory Drive Belt

Overview of Dayco Accessory Drive Belt 17640

The Dayco 17640 accessory drive belt is engineered for reliable performance in select GMC and Mercury vehicles. Designed with a synthetic rubber compound and a top cog construction, this belt ensures efficient power transmission for your vehicle's accessory systems.

• Material: Durable synthetic rubber compound
• Top width: 0.53 inches
• Effective length: Approximately 64 inches (1625.60 mm)
• Outside circumference: Approximately 64.27 inches (1632.46 mm)
• Operating temperature range: -37.2°C to 79.4°C (-35°F to 175°F)
• Belt construction: Top cog design for improved flexibility and grip
• Angle: 36 degrees
• Meets SAE J636 and SAE J637 standards

Detailed Product Description

The Dayco 17640 accessory drive belt is specifically designed to meet the demands of accessory drive systems in GMC P2500, P3500, and Mercury Cougar models. Constructed from a synthetic rubber compound, this belt offers resistance to heat and wear, maintaining performance across a wide temperature range from -37.2°C to 79.4°C. The top cog belt construction enhances flexibility and grip on pulleys, reducing slippage and improving overall accessory drive efficiency. With a top width of 0.53 inches and an effective length of approximately 64 inches, this belt fits precisely within the accessory drive belt system components category.

Compatible Vehicles and Applications

This accessory drive belt is compatible with the following vehicles:

• GMC P2500
• GMC P3500
• Mercury Cougar

Use the Dayco 17640 belt to maintain proper operation of alternators, power steering pumps, air conditioning compressors, and other accessory components in these models.

Common Issues Addressed by Dayco 17640 Belt

• Accessory belt wear and cracking due to age or heat exposure
• Slipping or squealing belts causing accessory malfunction
• Loss of power transmission to alternator or power steering pump
• Reduced belt flexibility leading to premature failure
• Incompatibility with OEM specifications causing fitment issues

Installation Notes and Tips

• Ensure the belt routing matches the vehicle’s accessory drive diagram
• Inspect pulleys and tensioners for wear before installation
• Use proper tensioning tools to avoid over-tightening or slack
• Check belt alignment to prevent premature wear
• Replace the belt if any signs of cracking, glazing, or fraying are present

Quality Assurance and Warranty

Dayco 17640 accessory drive belt complies with SAE J636 and SAE J637 standards, ensuring it meets industry requirements for durability and performance. Manufactured with quality materials and construction, this belt is backed by Dayco’s commitment to reliability. Please refer to Dayco’s warranty policy for specific coverage details.