For Mercedes W124 W129 R107 300CE 300SL Fuel Pressure Regulator Bosch 0000781189. 0438161013 – Bosch – Fuel Injection Pressure Regulator. Please review our interchange above in the compatibility table to verify proper fitment of your vehicle. Keep in mind interchange tables apply only to American Market vehicles. If you live outside the USA please research and verify it fits your vehicle before purchasing. Please read before purchasing. Interchange tables are for American Market Vehicles. All orders are processed automatically. Before you place your order, please. Verify that the item fits your car. There is a difference between Genuine and OEM / OE Supplier brands. OEM / OE Supplier parts are often the same parts you’d get at the dealership, just in a different box.