This fuel injection pressure damper is a direct replacement 23270-50010.It is designed to maintain consistent fuel rail pressure and reduce fuel system pulsations for compatible vehicles.Compatible models include select years of GS430, RX300, ES300, RX400h, SC430, GX470, RX330, ES330, LS400, ES250, SC400, GS400, LX470, Sequoia, Sienna, 4Runner, Solara, and Celica, Taurus, and Van with specified engine sizes and model years as listed in the product details.