AEM Mild Steel O2 Sensor Bung (30-4005)

When mounting a wideband UEGO AFR sensor in your exhaust, AEM's mild-steel wideband UEGO air/fuel ratio sensor bung is a cost-effective option. You need to weld this bung into your exhaust system. Please take a look at our stainless steel wideband UEGO air/fuel ratio sensor bungs for a more durable mounting option. The M18 x 1.5 thread pitch on this bung. FEATURES Mild-steel M18 x1.5 thread pitch.