Where is the oil pressure sending unit located on a 1995 jeep?

The oil sending unit is on the bottom of the engine towards the back of the engine compartment. It's located under and slightly behind the distributor cap, and directly above the oil filter. If you still can't find it take it to a shop because you have no business working on the vehicle. The above statement is true for SOME, not all. The oil sendind unit on my 2002 4.0L is n the sparkplug side not far from where the oil dipstick enters the crankcase. It is nowhere near the oil filter. It is close to the firewall and hard to see. Look for the wire harness.