The original lug nut on certain vehicles has a failure-prone two-piece design that makes rust common and repair difficult. This Dorman OE FIX replacement has a one-piece, carbon steel design to prevent future problems. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Buick Century: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991] - [Buick Park Avenue: 1991, 1992, 1993, 1994, 1995, 1996] - [Buick Regal: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991] - [Buick Skyhawk: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989] - [Buick Skylark: 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991] - [Buick Somerset Regal: 1985] - [Buick Somerset: 1986, 1987] - [Chevrolet Celebrity: 1984, 1985, 1986, 1987, 1988, 1989, 1990] - [Chevrolet Citation II: 1984, 1985] - [Chevrolet Citation: 1982, 1983] - [Chevrolet El Camino: 1982, 1983, 1984, 1985, 1986, 1987] - [Chevrolet Monte Carlo: 1982, 1983, 1984, 1985, 1986, 1987, 1988] - [GMC Caballero: 1982, 1983, 1984, 1985, 1986, 1987] - [Oldsmobile Cutlass Ciera: 1989, 1990] - [Oldsmobile Cutlass Supreme: 1988, 1989, 1990, 1991, 1992, 1993, 1994] - [Pontiac 6000: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989] - [Pontiac Phoenix: 1980, 1981, 1982, 1983, 1984]