A fifth wheel hitch assembly includes a mounting assembly, an arched base assembly, a head assembly and a jaw assembly carried by the head assembly. The jaw assembly includes a stepped jaw body. The head assembly includes a single piece, weldless and seamless skid plate. The base assembly is modular and includes a pair of legs and a central housing. The base assembly includes feet that are received in cooperating sockets carried by the mounting assembly. The feet may be locked in those sockets.