The Napa Echlin ST541 Starter Solenoid is a vintage part designed for a 1955 Dodge Coronet Custom or Plymouth Savoy operating on a 6V system. It features a bolt-on mounting style and a matte finish, with interchange part numbers including SW144 and 25-1576. Manufactured in the United States, this solenoid is specifically designed for the mentioned vehicle models, ensuring a precise fit and reliable performance. Please note that this product carries a California Prop 65 Warning for potential cancer and reproductive harm.