{"product_id":"spark-exhaust-lambda-reducer-m18-m12","title":"Spark Exhaust Lambda Sensor Thread Reducer M18 to M12 Stainless Universal SGATT260","description":"\u003cp\u003eAn M18 boss and an M12 sensor. Eight euro of stainless steel makes them meet.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eThread adapter, M18 external to M12 internal, for lambda sensors.\u003c\/li\u003e\n\u003cli\u003eStainless steel.\u003c\/li\u003e\n\u003cli\u003eSealing washer ROND18X24R is a separate article.\u003c\/li\u003e\n\u003cli\u003eSpark part number SGATT260, made in Mantova, Italy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe Mismatch It Solves\u003c\/h2\u003e\u003cp\u003eExhaust bosses are usually cut to M18, which is what most factory sensors use. Wideband sensors and some aftermarket units are M12, and a system built to one standard does not accept the other.\u003c\/p\u003e\u003cp\u003eRather than cutting the boss out and welding a new one in, this adapter threads into what is already there.\u003c\/p\u003e\u003ch2\u003eWhere the Sensor Ends Up\u003c\/h2\u003e\u003cp\u003eSlightly further out of the gas stream than it would be in a native boss. For a narrowband sensor reading a mixture that is nothing subtle, that is fine. For accurate wideband work, it is worth knowing the tip is no longer where the manufacturer assumed.\u003c\/p\u003e\u003ch2\u003eStainless, Not Brass\u003c\/h2\u003e\u003cp\u003eUnlike Spark's plugs, this part carries a sensor and has to hold its thread precisely. Stainless keeps the thread form; brass would not survive being removed and refitted at every service.\u003c\/p\u003e\u003ch2\u003eOrdering\u003c\/h2\u003e\u003cp\u003eOne per boss, plus the copper washer ROND18X24R.\u003c\/p\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53618387190026,"sku":"SGATT260","price":264.0,"currency_code":"THB","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/699334e36deef_4e45e0a3-07ee-4600-a961-f9d42f9be713.png?v=1788354488","url":"https:\/\/inter-pace.com\/en-th\/products\/spark-exhaust-lambda-reducer-m18-m12","provider":"Inter-Pace","version":"1.0","type":"link"}