This TOPRAN fuel pressure regulator, part number 622 528, is designed to maintain the correct fuel pressure within your vehicle's fuel system. Proper fuel pressure is critical for efficient combustion, smooth engine operation, and optimal fuel economy. Engineered to meet or exceed original equipment specifications, this regulator ensures reliable performance and durability. Its direct-fit design simplifies installation, making it a straightforward replacement for your worn or malfunctioning original part. By regulating the fuel pressure, this component helps prevent issues such as hard starting, rough idling, stalling, and poor acceleration, all of which can be symptoms of an improperly functioning fuel pressure regulator.