Dayco 89256 Accessory Drive Belt Tensioner Assembly

Overview of Dayco Accessory Drive Belt Tensioner Assembly 89256

The Dayco 89256 accessory drive belt tensioner assembly is designed for reliable serpentine belt tensioning in select Acura and Honda vehicles. This automatic tensioner supports smooth operation of the accessory drive system, ensuring consistent belt tension and optimal engine performance.

• Serpentine belt type compatible
• Clockwise direction operation
• Single pulley design with 90 mm diameter
• Pulley width of 27 mm with flat surface
• Automatic tensioner type for maintenance-free performance

Technical Details and Specifications

The Dayco 89256 tensioner assembly features a single pulley with a 90 mm diameter and a 27 mm width, designed with a flat surface to accommodate serpentine belts effectively. Its clockwise rotation direction aligns with the accessory drive system requirements of various Acura and Honda models. The automatic tensioner type maintains proper belt tension without manual adjustment, reducing wear and improving belt life. This component is engineered to meet the precise fitment needs of vehicles such as the Acura MDX, TL, CL, and Honda Accord, Odyssey, and Pilot.

Compatible Vehicles and Applications

This accessory drive belt tensioner assembly is compatible with the following makes and models:

• Acura Accord, CL, MDX, TL
• Honda Accord, Odyssey, Pilot

Use this part when replacing the accessory drive belt tensioner in these vehicles to restore proper belt tension and accessory function.

Common Issues Addressed by Part Number 89256

• Excessive belt slack causing slipping or noise
• Worn or damaged tensioner pulley affecting belt alignment
• Loss of automatic tensioning leading to premature belt wear
• Accessory drive belt misalignment or failure
• Reduced engine accessory performance due to improper belt tension

Installation Notes and Tips

• Ensure the serpentine belt is properly routed before installing the tensioner
• Verify the clockwise rotation direction matches the vehicle’s accessory drive system
• Inspect the belt and pulleys for wear and replace if necessary during installation
• Use appropriate tools to relieve tension safely when removing the old tensioner
• Confirm pulley alignment and tension after installation to prevent premature belt wear

Quality Assurance and Warranty

Dayco manufactures the 89256 accessory drive belt tensioner assembly to meet OEM specifications for fit and function. The automatic tensioner design supports consistent belt tensioning to extend belt life and maintain accessory performance. While specific warranty details may vary, Dayco products typically include coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.