Low Pressure Fuel Lines

LOW PRESSURE FUEL LINES
All fuel lines up to the fuel injection pump are considered low-pressure. This includes the fuel lines from: the fuel tank to the fuel transfer pump, and the fuel transfer pump to the fuel injection pump. The fuel return lines, the fuel drain manifold and the fuel drain manifold lines are also considered low-pressure fuel lines. High-pressure lines are used between the fuel injection pump and the fuel injectors.