DAYCO 89165 UPPER IDLER PULLEY FOR 2001-2016 GM 2500HD/3500HD WITH 6.6L DURAMAX ENGINE

The Dayco 89165 Idler Pulley is engineered to enhance the performance of your GM vehicles, specifically designed for models from 2001 to 2016 featuring the 6.6L Duramax engine. This high-quality idler/tensioner pulley ensures that your serpentine belt operates smoothly, providing essential support and reducing wear and tear on your engine components.

Crafted from durable steel, the pulley boasts a polished design that not only increases longevity but also helps maintain optimal performance under various conditions. With a diameter of 76mm and a width of 30mm, it is tailored to fit seamlessly into the engine's belt system, accommodating a maximum belt width of six ribs. Its flat design and lack of flange contribute to a lower profile, further enhancing its compatibility and efficiency.

This idler pulley comes equipped with one bearing that measures 10.15mm in diameter, providing a reliable rotation that significantly decreases friction and noise, contributing to a quieter and more efficient engine operation. Its precision engineering ensures that installation is straightforward, allowing for a hassle-free upgrade that can restore or enhance your vehicle’s performance.

Ideal for Chevrolet and GMC models, including the Silverado and Sierra HD lineups, as well as Express, Savana, Kodiak, and Topkick, the Dayco 89165 Idler Pulley is a smart investment for both professional mechanics and DIY enthusiasts alike. Whether you're looking to replace a worn-out part or improve your engine's reliability, this idler pulley represents an essential addition to your vehicle maintenance toolkit. Trust in Dayco’s reputation for quality and performance to keep your heavy-duty vehicle running at its best.