Quicksilver 865597T Belt Tensioner for MerCruiser Inboard Engines

The Quicksilver 865597T Belt Tensioner is a genuine OEM replacement part manufactured by Mercury Marine for use on MerCruiser inboard and sterndrive engines. This tensioner is designed to maintain proper serpentine belt tension across the seawater pump and power steering brackets, ensuring reliable operation of critical engine-driven accessories.

As a factory-original Quicksilver component, this belt tensioner is built to the same specifications as the part installed at the factory, delivering a precise, dependable fit without the guesswork of aftermarket alternatives.

Key Features:

• Genuine OEM part manufactured by Mercury Marine / Quicksilver
• Maintains correct serpentine belt tension on seawater pump and power steering brackets
• Direct factory replacement — no modifications required
• Backed by Mercury Marine and Quicksilver quality standards
• Sold individually (quantity = 1)

Compatible with a wide range of MerCruiser big-block inboard engines including the 496 MAG, 496 MAG H.O., 496 MAG EC, 8.1L Inboard, 8.1L H.O., 8.1L TowSport, 8.2L MPI Bravo, 8.2L Inboard, 6.2L MPI MIE, 4.5L MPI 200/250, 100 Vazer, 520, and 540 series engines. Always confirm fitment using your engine serial number before ordering.