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The Stainless Bros O2 sensor adapter converts an M18x1.5mm oxygen sensor bung to an M12x1.25mm thread, allowing installation of smaller threaded sensors or different sensor hardware. Machined for a snug fit between differing thread sizes, this adapter provides a simple, vehicle-specific solution for fitting alternate oxygen sensors during exhaust modifications or repairs.
Stainless Bros M18x1.5mm to M12x1.25mm O2 Sensor Adapter
