This Mopar 4638256 Manifold Air Pressure Sensor (MAP Sensor) is a genuine part that fits 1987-1990 cars and minivans. It is a bolt-on type with a bullet terminal and a black female connector. The sensor is made of plastic and is designed for easy installation with a direct fit. The sensor has one sensor and is wired with three wires, making it a suitable replacement for your vehicle's air intake and fuel sensors. It is a vintage part with an OE/OEM part number of 4638256 and an interchange part number of AS8. This MAP Sensor is not a universal fitment and is not suitable for performance parts.