The Accessory Automatic Drive Belt Tensioner Assembly is a durable and reliable replacement for the original tensioner on specified vehicle years, makes, and models. With a maximum belt width of 30mm, 40mm pulley bearing diameter, and 20mm pulley bearing inside diameter, this tensioner assembly is designed for practicality and performance. Quality tested for vehicle fit, corrosion, torque, and spring-back, this part ensures a quality fit and reliable performance. Ideal for most 2002-2012 Ford, IC Corporation, International, Workhorse, and Workhorse Custom Chassis models with V6 275CID 4.5L, V8 383CID 6.0L, and V8 365CID 6.0L engines, this tensioner assembly is a practical and durable solution for your vehicle's needs.