The Pioneer Engine Expansion Plug EPC-50 is a specific type of engine block component designed for automotive use. As indicated by its manufacturer part number EPC50, this expansion plug is made by Pioneer and is meant to be sold separately from other engine components. This part is essential for maintaining the integrity of the engine block, ensuring proper functioning and performance of the vehicle's engine system. Designed with quality and precision in mind, the Pioneer Engine Expansion Plug EPC-50 is a reliable choice for engine maintenance and repair needs.