Will a 1992 Dodge Dakota 3.9L V6 fit in A 1995 Sport?

No, a 1992 Dodge Dakota 3.9L V6 will not directly fit into a 1995 Dodge Dakota Sport without significant modifications. While both are Dakotas and use a V6, there are differences in the engine mounts, wiring harnesses, and potentially the transmission and other components that make them incompatible. The engine may be physically close in size but the mounting points are different enough to prevent a simple swap. You'd be looking at a very extensive and complex project.