Compatible Years: 2016 2017. 2017 Lexus IS300 Engine: 3.5L V6;. 2016 Lexus IS300 Engine: 3.5L V6;. Part Type: Engine Coolant Outlet Gasket. Eng Coolant Gasket. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.