WAM-4 is the name of a type of electric locomotive used in India. It is a very successful locomotive in Indian Railways' fleet. The first one was indigenously designed and built by CLW in 1970-71. They were produced until about 1997. They use the same power bogies as the successful WDM-2 class. These locos feature rheostatic braking, and MU capability. Being designed specially for mixed traffic these locos has rendered excellent service.