Dayco 89495 Automatic Belt Tensioner Assembly

The Dayco 89495 Automatic Belt Tensioner Assembly is a heavy-duty OE-quality replacement designed to maintain optimal serpentine belt tension for reliable accessory drive performance. This tensioner assembly ensures proper operation of critical engine accessories including alternators, air conditioning compressors, power steering pumps, and water pumps.

Key Features:

• Heavy-duty cast aluminum construction resists cracking, rust, and fatigue for extended service life
• Patented flat wire spring design provides consistent, concentric tension with reduced operating range variation
• Lubricated bearings with high-temperature seals ensure smooth operation and long-lasting performance
• Deflected arm plate design decreases rotational movement and extends tensioner life
• Built-in locator pin withstands maximum drive demands and ensures correct installation positioning
• Smoother surfaces and tighter dimensional tolerances reduce wear, friction, vibration, and harshness
• Superior resistance to dirt, salt, chemicals, and other under-hood contaminants

Cross-Reference Numbers: Replaces Gates 38624, ACDelco 38624, Four Seasons 45834, Litens 910010, John Deere RE18097, SKF VKM910010, and Contitech 49562. This is the OEM tensioner used by Cummins and other major manufacturers.

Dayco has manufactured premium automotive belts and drive system components since 1905, offering proven reliability and performance for professional technicians and DIY mechanics alike.