CNC machined 6061 aluminum assembly includes; weld bung, cap and crown. The crown is engraved to industry standard with the “Engine Coolant” icon. Designed specifically for custom applications: Weld the bung to your tank, thread on the pressurized cap, and use epoxy on the crown to precisely position and lock the icon in your desired orientation.
Available in natural finish. 
Overall diameter 2 ⅜”
Sold individually or add on Power Steering, Engine Oil, and/or Coolant Overflow Cap Crown Assembly
100% made in the USA.