Dayco 89251 Accessory Drive Belt Tensioner Assembly

Overview of Dayco Accessory Drive Belt Tensioner Assembly 89251

The Dayco 89251 accessory drive belt tensioner assembly is designed for reliable serpentine belt tension control in select Chrysler, Dodge, and Plymouth vehicles. This automatic tensioner features a single pulley with specific dimensions to ensure proper belt alignment and performance.

• Serpentine belt type for smooth power transmission
• Counter clockwise rotation direction
• Single pulley design with 90 mm diameter
• Pulley width of 27 mm with a flat surface
• Automatic tensioner type for consistent belt tension

Detailed Product Description and Specifications

The Dayco 89251 tensioner assembly is engineered to maintain optimal tension on the serpentine belt system, which drives multiple engine accessories. Its automatic tensioner mechanism adjusts tension dynamically, reducing belt slip and wear. The single pulley has a diameter of 90 mm and a width of 27 mm, featuring a flat surface to accommodate the belt profile. The tensioner rotates counter clockwise, matching the belt routing in compatible vehicles. This component is specifically compatible with Chrysler, Dodge, and Plymouth models including Caravan, Dynasty, Grand Caravan, Grand Voyager, Imperial, Neon, New Yorker, Town & Country, and Voyager.

Compatible Vehicles and Applications

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

• Chrysler Caravan, Dynasty, Grand Caravan, Grand Voyager, Imperial, New Yorker, Town & Country, Voyager
• Dodge Caravan, Dynasty, Grand Caravan, Grand Voyager, Neon, Voyager
• Plymouth Grand Voyager

Use the Dayco 89251 tensioner to address issues related to serpentine belt tension and alignment in these vehicles.

Common Issues Addressed by Dayco 89251 Tensioner

• Excessive belt noise due to improper tension
• Premature serpentine belt wear or damage
• Slipping belts causing accessory malfunction
• Vibration or misalignment in the belt drive system
• Loss of automatic tension adjustment capability

Installation Notes and Tips

• Ensure the serpentine belt routing matches the counter clockwise rotation of the tensioner pulley
• Inspect the belt for wear and replace if necessary during installation
• Use proper tools to relieve tension safely before removing the old tensioner
• Verify pulley alignment and tension after installation to prevent premature belt wear

Quality Assurance and Warranty Information

Dayco manufactures the 89251 tensioner assembly to meet OEM specifications for durability and performance. This automatic tensioner is built to provide consistent belt tension over its service life. While specific warranty terms may vary, Dayco products typically include a limited warranty against defects in materials and workmanship. Refer to the product documentation for detailed warranty coverage.