Description

The product is a Pioneer EPC-77 59/64″ Expansion/Freeze Plug, also known as Dorman 555-075, which is a new old stock (NOS) part. It is designed for automotive use and is manufactured by Pioneer Automotive. The expansion/freeze plug is essential for sealing the openings in an engine block to prevent coolant leaks. The part numbers associated with this plug are EPC-77, PC-77, and 555-075, providing multiple options for identifying and ordering the correct component for a vehicle maintenance or repair job.