{"product_id":"spark-exhaust-lambda-plug-m12","title":"Spark Exhaust Lambda Sensor Plug M12 Brass Universal TAPPO017","description":"\u003cp\u003eFive euro to close a hole. When a fabricated system leaves a lambda boss unused, this is what goes into it.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eM12 plug for closing an unused lambda sensor thread.\u003c\/li\u003e\n\u003cli\u003eBrass.\u003c\/li\u003e\n\u003cli\u003eSealing washer ROND12X18R is a separate article.\u003c\/li\u003e\n\u003cli\u003eSpark part number TAPPO017, made in Mantova, Italy.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhich Thread\u003c\/h2\u003e\u003cp\u003eM12 is the smaller of the two sizes Spark supplies plugs for. M18 is the other, and the two are not interchangeable — check the boss before ordering, because a plug that does not fit is not something a workshop can adapt.\u003c\/p\u003e\u003ch2\u003eWhy a Boss Gets Plugged\u003c\/h2\u003e\u003cp\u003eA racing system with no sensor still has to be gas-tight. An open boss leaks, makes noise it should not, and lets exhaust gas into places it does not belong — usually straight at a fairing panel.\u003c\/p\u003e\u003ch2\u003eBrass, Not Steel\u003c\/h2\u003e\u003cp\u003eBrass will not seize into a steel boss the way a steel plug does after a season of heat cycles. It is softer, it deforms slightly to seal, and it comes out again when the sensor has to go back in.\u003c\/p\u003e\u003ch2\u003eOrder the Washer With It\u003c\/h2\u003e\u003cp\u003eThe copper sealing washer is a separate article, ROND12X18R, at one euro. Without it the plug seals on the thread alone, which works until it does not.\u003c\/p\u003e","brand":"Spark Exhaust","offers":[{"title":"Default Title","offer_id":53618378014986,"sku":"TAPPO017","price":10.0,"currency_code":"BBD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7831\/0410\/files\/629071c03371e_a6e38d76-494e-46cf-ad42-44bab35999f4.png?v=1788354474","url":"https:\/\/inter-pace.com\/en-bb\/products\/spark-exhaust-lambda-plug-m12","provider":"Inter-Pace","version":"1.0","type":"link"}