Description: Without supercharger, 1999-2005. 3.8L with supercharger. 1999-2004 without supercharger. With supercharger, 1999-04. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors

Description: The GM OEM Drive Belt Tensioner (MPN: 12590766) is an essential engine component engineered to maintain optimal drive belt tension for select GM vehicles. This genuine General Motors part ensures consistent belt performance and prevents slippage that could ...