AEM O2 Sensor Bung – Mild Steel – Weld On – Female M18x1.5mm Thread #30-4005. Outside Diameter ~25mm. Height ~15mm.

AEM’s mild-steel wideband UEGO air/fuel ratio sensor bung is an economical solution for providing a sensor mount when installing a wideband UEGO AFR sensor in your exhaust. This bung must be welded into your exhaust system. This bung has an M18 x1.5 thread pitch.

Features:
Bung has an Female M18 x1.5 thread pitch
Great Solution for EFI Conversions