Bosch OEM Fuel Pressure Regulator for Silverado 2500 HD Sierra 3500 6.6L V8 LB7. Cases Per Pallet (ORLY): 1 Private Brand? No Unit(s) per Car Qty (ORLY): 1. 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 you’d get at the dealership, just in the different box. Brands are often manufactured in multiple countries.