Upgrade your vintage GM vehicle with the Napa Echlin ST33 switch assembly, a genuine piece of automotive history designed for a seamless fit on specific models from the 1950s. This multicolor switch, with its robust build quality, is proudly made in the United States and offers a durable, dustproof, and weatherproof performance that's sure to last. Tailored for the front left placement, the switch is an essential component for engine kill control, featuring OE/OEM part number 1930496. Its interchange part numbers include DR480 and SS-521, ensuring compatibility and ease of reference for collectors and restorers. Embrace the reliability of a NAPA brand switch that's not just a performance part but a statement of quality and authenticity for your classic school bus, pickup, or panel truck. Exact item is shown. New old stock with original packaging. Item weight 5 oz. Made in USA. No returns if installed. Please review our business policies in our store for information regarding returns, shipping and warranties.