Suitable for Lexus RX350 3.5L V6 Engine. Suitable for Toyota Highlander 3.5L V6 Engine. Suitable for Toyota Sienna 3.5L V6 Engine. Type: Engine Oil Cooler. 1 x Engine Oil Cooler. Reference OE/OEM Number: Suitable For 1571031021, 15710-31021, 1571031020, 15710-31020.