Part Type: Accessory Drive Belt Tensioner Assembly. DriveAlign Automatic Belt Drive Tensioner. Belt Tensioner. Contents: Tensioner Assy. 1999 Ford F-450 Super Duty Engine: 6.8L V10 GAS; W/O A.C.;;. 2001 Ford F-450 Super Duty Engine: 6.8L V10 GAS; W/O A.C.;;.
