NOS solenoids have been the standard in the performance and racing world for over 35 years and are designed for optimum flow and operation. NOS has overhauled the entire line with new features and new part numbers. The NOS fuel solenoids feature a red powder coated housing, large orifice sizes and FKM rubber plunger pucks for durability and sealing. All NOS solenoids feature stainless steel bases with the NOS logo along with in/out stamped in so you know it is a quality NOS solenoid.