Water and oil sending unit help 2.5

[BlackBeast]

Hi I just went to mechanical guage cluster and the part stores are trying to give me a 1 prong water probe. Anyone have the part numbers for oil and water on the 2.5?? Mine is a 89 so it's located at the back of head..I realize I could put a connector on wire at back of head but if I don't have to and can get the right part, it would be nice .thx

[88whitemanche]

Airtex # 3g9...looks like a bell...oil

 

 

Standard # ts199...for gauges...coolant