1/8" NPT Female Steel fitting weld boss. For installing pyrometer probes, electric transmission and oil temperature gauge senders on applications that do not allow for drill and tap method.
Other Items from Turbos, Turbo Kits, Intercoolers, and Accessories Earls fitting 90 degree -4 TO 1/4 ADPT - Auto Meter Weld in Adapter for 1/8" NPT -