Fuel pressure regulator, 2.5 bar
Fuel pressure regulator, 2.5 bar (36.3 psi) for most 3.9 E engines, unless your car has no O2 sensor and an unregulated catalyst, then you will need the 3.0 bar regulator. Please check the Bosch number on the regulator and let me know that number before you order.
Diagram GR 08-T02, Item No. 4