Weld-Ons

Weld-on fittings for adding a permanent AN, NPT, or ORB connection point to a custom tank, manifold, radiator, or fabricated component — plus O2 bungs and filler necks for tank and exhaust builds.

Quick guide:

  • Choose the port type to match what you're plumbing into: AN for braided line, NPT for threaded accessories/sensors, ORB for a leak-tight O-ring seal.
  • All weld-ons need to be TIG welded by a qualified fabricator — these are not bolt-on parts.
  • O2 bungs and screw-in plugs are sized to standard sensor threads; check your sensor's spec before ordering.