Will a front grill from a 1994 Nissan Pathfiner fit on a 1995 Nissan pickup?

Yes! I did this to a 1994 Nissan 4x4. But you will also have to buy the headlights and marker lights. The metal behind the grill is all the same between the pathfinder and pickup truck from back then. The only other thing you will have to do is change the plugs on the end of the wiring harness for the lights but it is really simple.