I have a busted waterpump and do not know which pump to use, one is for a serpentine belt and the other is for a non-serpentine belt. Looking from the front of the jeep toward the rear, looking into and through the radiator, the fan and water pump turns clockwise.

My jeep is a straight 6 cilindar engine, standard transmission, per the VIN the jeep was made in the US, Jeep Corp, Mulit purpose, 6cyl, 258 CID, 4 speed Manual, floor shift, part time trandfer case, CJ-7, 2 door, Plant code Toledo, Ohio, serial number is 100000

OD reading is 49,260