AN Male plastic cap #PD-320. These caps are made of durable plastic and are used to keep contaminates out of your precious race car parts. Simply twist on with your fingers and you are done. Threads on this plug are 2.50" - 12.
Note: This is a used item. This item might have been taken in on a trade. RBS may have inspected this item and deemed re-usable. There is no warranty expressed or implied with this item.