Get one of these RRC billet aluminum caps w/ weld in bung for your application today. These can be used in a wide variety of applications from valve covers to rear end housings. They are made from 6061 T-6 Aluminum and CNC machined to exact tolerances. They feature an o-ring seal and course threads for ease of starting when installing the cap. They are avalible in a variety of sizes and colors along with aluminum or steel weld in bungs.
This item features the following items:
1 5/8" OD Anodized Blue Aluminum Fill Cap
Steel Weld In Bung
1 1/4" - 12 Threads