ACDelco 38178 Professional Automatic Belt Tensioner Assembly for Tensioning Belts without Pulley

Description

⚙️ Keep your engine running smoother, longer — the pro’s choice in belt tension!

The ACDelco 38178 Professional Automatic Belt Tensioner Assembly delivers precise belt tension, alignment, and vibration damping to maximize accessory belt drive system performance. Featuring a patented vibration damping system and torsional round spring design, it ensures long-lasting durability and consistent tension. Designed for full line coverage across domestic, import, and heavy-duty vehicles, this premium aftermarket part meets OEM standards for fit and function.