This 81-83 Subaru camshaft is a brand new item with the OE/OEM part number 415-3220. 
It is a type of camshaft made in Japan and is suitable for vintage Subaru models. 
This camshaft is a key component for your Subaru's engine, specifically the 1.6L 1600CC 97 CI SOHC engine. 
CMC 230201