1989 Pontiac Tempest Engine: 2.8L V6;. 1990 Pontiac Tempest Engine: 3.1L V6;. 1991 Pontiac Tempest Engine: 3.1L V6;. Part Type: Accessory Drive Belt Tensioner Assembly. Belt Type: Serpentine. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.