This engine water pump stud kit is designed to match the original hardware required to repair the water pump on specified vehicles. Made of quality components, this kit is engineered for reliable performance and durability. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Buick Century: 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993] - [Buick Electra: 1986, 1987, 1988, 1989, 1990] - [Buick LeSabre: 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995] - [Buick Park Avenue: 1991, 1992, 1993, 1994, 1995] - [Buick Reatta: 1988, 1989, 1990, 1991] - [Buick Regal: 1990, 1991, 1992, 1993, 1994, 1995] - [Buick Riviera: 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1995] - [Buick Skylark: 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993] - [Buick Somerset Regal: 1985] - [Buick Somerset: 1986, 1987] - [Chevrolet Lumina APV: 1992, 1993, 1994, 1995] - [Oldsmobile 98: 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995] - [Oldsmobile Achieva: 1992, 1993] - [Oldsmobile Calais: 1986, 1987] - [Oldsmobile Cutlass Calais: 1988, 1989, 1990, 1991] - [Oldsmobile Cutlass Ciera: 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993] - [Oldsmobile Delta 88: 1986, 1987, 1988, 1989, 1990, 1991] - [Oldsmobile Silhouette: 1992, 1993, 1994, 1995] - [Oldsmobile Toronado: 1986, 1987, 1988, 1989, 1990, 1991, 1992] - [Pontiac Bonneville: 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995] - [Pontiac Grand Am: 1985, 1986, 1987, 1992, 1993] - [Pontiac Trans Sport: 1992, 1993, 1994, 1995]