The oil pressure sending unit on a 1994 Dodge Ram 1500 is located on the
passenger side of the engine block, near the
oil filter. It's a relatively small unit with a single wire connected to it. However, the exact location can vary slightly depending on the specific engine (e.g., 3.9L, 5.2L, 5.9L).
To be certain, it's best to consult a repair manual specific to your truck's engine. A Chilton's or Haynes manual will have diagrams showing the exact location. You can also find diagrams online if you search for "[Your Engine Size] 1994 Dodge Ram 1500 oil pressure sending unit location".
