Full-Bore's Fuel and Filler Caps and Bungs can be used for all sorts of applications, from rearends to fuel tanks. To cover most needs, the weld bungs are constructed in both aluminum and steel. The fuel caps have a satin finish with a 2-1/2" thread. The filler caps are satin finished with a 1-5/16" thread.

2-1/2" Full Bore Threaded Filler Cap w/ Steel Bung