Dayco 89156 Drive Belt Idler Pulley - 84mm Serpentine Pulley

The Dayco 89156 is a high-quality drive belt idler pulley designed for reliable performance in truck compressor drive applications. This precision-engineered component features an 84mm diameter flat steel pulley without flange, designed to accommodate serpentine belts up to 5 ribs wide.

Key Specifications:

• 84mm pulley diameter with 22.8mm width
• 12mm bearing inner diameter
• Single bearing configuration for smooth operation
• 5-rib maximum belt width capacity
• Flat steel construction without flange

Advanced Engineering Features:

• Constructed from specially formulated glass-filled polymers for high-strength performance and maximum wear resistance
• Designed using state-of-the-art 3-D computer aided design and finite element analysis to ensure optimal structural integrity
• Engineered with smoother surfaces and tighter dimensional tolerances to reduce vibration and extend belt life
• Lifetime lubricated ball bearings with double high-temperature seals for peak performance and durability
• Cooler running design reduces heat buildup during operation

This OE replacement pulley is sold individually and comes backed by Dayco's limited warranty, providing confidence in long-term reliability for your vehicle's accessory drive system.