Dayco 89261 No Slack Automatic Belt Tensioner Assembly

The Dayco 89261 No Slack Automatic Belt Tensioner Assembly is a precision-engineered accessory drive component designed to maintain consistent belt tension throughout the life of your serpentine belt system. This complete tensioner assembly features Dayco's proprietary flat spring technology that automatically compensates for belt stretch and wear, ensuring optimal performance and eliminating common issues like belt squeal, improper tracking, and premature accessory failure.

Key Features:

• Automatic tensioning system maintains constant belt pressure throughout belt life
• Single smooth pulley design with 76mm diameter and 31mm width
• Clockwise rotation for proper serpentine belt operation
• Cast aluminum housing and arm for durability and heat dissipation
• Lubricated bearings with high-temperature seals for extended service life
• Steel locator pins and arm plates for precise installation and long-lasting performance
• Smoother surfaces and tighter dimensional tolerances to prolong belt life
• Superior resistance to dirt, salt, chemicals, and under-hood contaminants

This tensioner assembly serves as a direct OEM replacement and is compatible with numerous Ford and Mazda applications. It replaces multiple OEM part numbers including Ford 1L5Q-6A228-AB, 1L5Q-6A228-AC, 1L5Z-6B209-A, F87Z-6B209-CA, and Mazda ZZM3-15-980, ZZP0-15-980, along with aftermarket equivalents from Gates (38155, 39075), ACDelco (38155), Dorman (419-209), and others. Backed by Dayco's century-long reputation for quality and engineered to outperform OEM specifications, this tensioner assembly ensures reliable operation and minimizes noise, vibration, and harshness in your vehicle's accessory drive system.