Dayco 89155 Accessory Drive Belt Idler Pulley - Air Conditioning

Overview of Dayco Accessory Drive Belt Idler Pulley 89155

The Dayco 89155 accessory drive belt idler pulley is engineered for reliable performance in Nissan vehicles including the D21, Frontier, Pickup, and Xterra models. Constructed from durable steel, this pulley supports the V-belt system by maintaining proper tension and alignment.

• Material: Steel for enhanced strength and durability
• Belt Type Compatibility: V-belt
• Bearing Inner Diameter: 20 mm
• Bearing Width: 14 mm
• Maximum Belt Width: 1/2 inch
• Number of Bearings: 1
• Flat Surface: No (designed for V-belt applications)

Technical Details and Specifications

The Dayco 89155 idler pulley is designed specifically for accessory drive belt systems using V-belts. Its steel construction ensures resistance to wear and deformation under continuous operation. The bearing inner diameter of 20 mm and bearing width of 14 mm provide smooth rotation and reduce friction, contributing to the longevity of the belt system. This pulley accommodates belts up to 1/2 inch wide, making it suitable for the accessory drive configurations found in Nissan D21, Frontier, Pickup, and Xterra vehicles.

Compatible Nissan Models and Applications

This accessory drive belt idler pulley is compatible with several Nissan models, including the D21, Frontier, Pickup, and Xterra. It is intended for use in maintaining proper belt tension and alignment in these vehicles’ accessory drive systems, ensuring efficient operation of components such as the alternator, power steering pump, and air conditioning compressor.

• Maintains correct tension on V-belts
• Prevents belt slippage and misalignment
• Reduces wear on accessory drive components
• Supports smooth operation of engine accessories
• Helps avoid premature belt failure

Installation Notes and Tips

When installing the Dayco 89155 idler pulley, ensure the belt width does not exceed 1/2 inch to maintain proper fit and function. Verify the bearing inner diameter matches the mounting shaft size (20 mm) for secure installation. It is recommended to inspect the belt and other drive components for wear during replacement. Proper torque specifications should be followed to avoid damage to the pulley or mounting hardware.

Quality Assurance and Warranty Information

Dayco manufactures the 89155 idler pulley to meet OEM standards for fit and function. The steel construction and precision bearing design contribute to reliable performance in Nissan accessory drive systems. While specific warranty details may vary, Dayco products typically come with a limited warranty covering defects in materials and workmanship under normal use.