Fuel Pressure Regulator For Lexus GS300 GS350 GS450h IS250 IS350 GS430 QW27J4. This pressure regulator is located at the fuel pump INSIDE the fuel tank. Fit Notes: Production: 01/2005-06/2006. Fit Notes: Production: 07/2006. Fit Notes: In-Tank Regulator. Fit Notes: Production: 01/2005. Fit Notes: Production: 02/2006. Fit Notes: Production: 08/2005. Fit Notes: To 04/2013, In-Tank Regulator. […]