ACDelco 39390 Professional Accessory Drive Belt Tensioner Assembly

The ACDelco Professional 39390 Accessory Drive Belt Tensioner Assembly is a high-quality aftermarket replacement component for cooling, HVAC, and starting and charging vehicle systems. This automatic belt tensioner maintains proper tension on the serpentine accessory drive belt, ensuring optimal performance of critical engine components including the alternator, water pump, power steering pump, and air conditioning compressor.

Key Features:

• ACDelco Gold quality manufacturing that meets expectations for fit, form, and function for GM vehicles and many other makes and models
• Complete assembly includes tensioner, mounting bolt, and hydraulic damper for smooth operation
• Durable construction with thermoplastic materials and precision bearing design
• OEM replacement part number 19341768 cross-reference for direct fitment
• Pre-assembled unit for straightforward installation without special tools

This tensioner assembly is engineered to deliver reliable, long-lasting performance while maintaining the correct belt tension crucial for proper engine function. Backed by a 24-month unlimited mile warranty, the ACDelco 39390 provides dependable service for professional technicians and DIY mechanics alike.