304 Stainless Steel Exhaust Lambda boss Nut Weld-on M18 x 1.5 O2 Oxygen sensor

304 stainless steel weld-on M18 x 1.5 lambda / O2 sensor boss with nut. 304-grade stainless weld-in boss + nut for fitting an M18 x 1.5 oxygen sensor to a custom exhaust or downpipe — fits all wideband and OE narrowband lambda sensors.

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