The Hitachi High Pressure Fuel Pump Kit - 135937 is a comprehensive set of products designed to service the fuel pump in a car. The kit includes various components that work together to ensure the proper functioning of the fuel pump and maintain the optimal performance of the vehicle. These components are carefully selected to provide high pressure fuel delivery and efficient fuel consumption. The kit includes a high pressure fuel pump, gaskets, seals, and other necessary hardware. It also contains a fuel filter, which helps to keep the fuel clean and free from contaminants. Additionally, the kit includes a fuel pressure regulator, which helps to regulate the fuel pressure and maintain a steady flow of fuel to the engine. With this kit, car owners can ensure that their fuel pump is in top condition, providing efficient and reliable performance for their vehicle.