SENTRA 15-16 Fan Assembly;. SENTRA 17 Fan Assembly; 1.8L. SENTRA 19 (fan assembly), 1.8L, thru 04/30/18. SENTRA 18 (fan assembly), 1.8L. BEFORE INSTALLING TRANSMISSION, FLUSH ALL FLUID LINES. REPLACE FILTER, GASKET AND FRONT PUMP SEAL WITH A NEW ONE.