Dayco 89572 Accessory Drive Belt Idler Pulley - Upper

Reliable Accessory Drive Belt Idler Pulley for Select GM Vehicles

The Dayco 89572 accessory drive belt idler pulley is engineered to maintain proper tension and alignment of serpentine belts in various Buick, Chevrolet, GMC, and Saab models. Constructed from durable steel, this pulley supports efficient belt operation and helps prevent premature wear.

• Material: Steel construction for strength and durability
• Belt Type: Designed specifically for serpentine belts
• Bearing Inner Diameter: 17 mm for precise fitment
• Bearing Width: 12 mm ensuring smooth rotation
• Supports up to 6-rib belt width
• Single bearing design for reliable performance
• Flat pulley profile compatible with specified belt systems

Durable Design and Precise Specifications

The Dayco 89572 idler pulley features a robust steel body that withstands the stresses of continuous engine operation. Its single bearing with a 17 mm inner diameter and 12 mm width ensures smooth and consistent rotation, reducing belt slippage and noise. The pulley is designed for serpentine belt systems with a maximum belt width of 6 ribs, making it suitable for a range of accessory drive configurations. The flat profile of the pulley aligns with the belt to maintain proper tension and routing.

Compatible Vehicles and Applications

This accessory drive belt idler pulley is compatible with multiple GM vehicles, including Buick LaCrosse and Regal, Chevrolet Captiva Sport, Express 2500 and 3500, GMC Sierra 2500 HD and 3500 HD, Silverado 2500 HD and 3500 HD, as well as the GMC Savana 2500 and 3500. It also fits the Saab 9-5 model. The Dayco 89572 is designed to replace worn or damaged idler pulleys in these vehicles, ensuring optimal belt system performance.

• Maintains proper serpentine belt tension and alignment
• Reduces belt noise and vibration
• Prevents premature belt wear and failure
• Supports accessory components like alternator, power steering, and A/C compressor
• Replaces faulty or worn idler pulleys in specified GM and Saab models

Installation Notes and Tips

When installing the Dayco 89572 idler pulley, ensure the serpentine belt is properly routed according to the vehicle’s belt diagram. Verify the bearing rotates smoothly before installation. Use appropriate tools to remove the old pulley and torque the new pulley to manufacturer specifications. Regular inspection of the pulley and belt system is recommended to maintain optimal performance.

Quality Assurance and Warranty

Dayco manufactures the 89572 idler pulley to meet OEM standards for fit, form, and function. The steel construction and precision bearing design contribute to long service life. While specific warranty details are not provided, Dayco products typically come with a limited warranty against defects in materials and workmanship.