This replacement window regulator is precision-engineered and extensively tested to match the exact fit, function and performance of the stock window regulator on specific vehicle years, makes and models. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Dodge D100: 1977, 1978] - [Dodge D150: 1977, 1978] - [Dodge D200: 1977, 1978] - [Dodge D300: 1977, 1978] - [Dodge D400: 1978, 1979, 1980, 1981] - [Dodge D450: 1978, 1979, 1980, 1981] - [Dodge Ramcharger: 1977, 1978] - [Dodge W100: 1977] - [Dodge W150: 1977, 1978] - [Dodge W200: 1977, 1978] - [Dodge W300: 1977, 1978] - [Plymouth Trailduster: 1977, 1978]