The product is an OEM Engine Control Module (ECM) for a 1998-1999 Dodge Ram 1500 with a 5.2L or 5.9L engine. It is a bolt-on unit with pin terminals and a female connector. Programming is required for installation. The ECM is designed for easy installation on the front of the vehicle and is not a universal fitment part. It is a genuine Dodge part with the manufacturer code P56028351.