Some original equipment supercharger drive couplings fail prematurely, and dealerships make you buy an entire new supercharger nose cone assembly. This Dorman OE FIX solution is an upgraded replacement that save money and improves durability. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Buick Park Avenue: 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005] - [Buick Regal: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004] - [Buick Riviera: 1995, 1996, 1997, 1998, 1999] - [Chevrolet Impala: 2004, 2005] - [Chevrolet Monte Carlo: 2004, 2005] - [Oldsmobile 88: 1995] - [Oldsmobile 98: 1992, 1993, 1994, 1995] - [Oldsmobile LSS: 1996, 1997, 1998, 1999] - [Pontiac Bonneville: 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003] - [Pontiac Grand Prix: 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007]