{"product_id":"oem-mercedes-1277023621-0281008069","title":"Diesel Particulate Matter Sensor 1277023621 \/ 0281008069 for Mercedes-Benz C-Class E-Class GLC Sprinter Diesel Emission System","description":"\u003cp\u003eFitment Level: OE Match \/ Platform Verified\u003c\/p\u003e\n\u003cp\u003eCompatible with Mercedes-Benz diesel emission aftertreatment systems using OEM references:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1277023621\u003c\/li\u003e\n\u003cli\u003e0281008069\u003c\/li\u003e\n\u003cli\u003e0281008070 \/ 0281008071 (related revision family depending on engine calibration)\u003c\/li\u003e\n\u003cli\u003eA0009050608 \/ A0009059601 (closely related Mercedes PM sensor ecosystem on some variants)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTypical applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMercedes-Benz C-Class W205 (diesel Euro 6 facelift models)\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz E-Class W213 \/ S213 diesel\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz GLC X253 \/ C253 diesel\u003c\/li\u003e\n\u003cli\u003eMercedes-Benz Sprinter W907 \/ W910 diesel\u003c\/li\u003e\n\u003cli\u003eEngines: OM654 \/ late OM651 diesel platforms (Euro 6 \/ Euro 6d systems)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis sensor is used in \u003cstrong\u003ediesel particulate matter monitoring systems\u003c\/strong\u003e, where it measures soot concentration downstream of the diesel particulate filter (DPF). The ECU uses this signal to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emonitor DPF efficiency in real time\u003c\/li\u003e\n\u003cli\u003econtrol regeneration cycles more precisely than pressure-based estimation\u003c\/li\u003e\n\u003cli\u003edetect soot breakthrough or filter degradation\u003c\/li\u003e\n\u003cli\u003emaintain Euro 6 emissions compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e⚠️ Important:\u003cbr\u003eThis is a \u003cstrong\u003eDPF particulate matter (PM) sensor\u003c\/strong\u003e, not a NOx or temperature sensor.\u003cbr\u003eIt directly measures soot concentration after the DPF and is a critical feedback sensor in Mercedes-Benz BlueTEC emissions systems.\u003c\/p\u003e\n\u003cp\u003eFitment must always be confirmed strictly by OEM number (1277023621 \/ 0281008069), as Mercedes uses multiple revisions across OM654\/OM651 platforms depending on model year and ECU software.\u003c\/p\u003e","brand":"ASHENG","offers":[{"title":"Default Title","offer_id":51636267843716,"sku":"1277023621","price":155.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/8313\/1012\/files\/12_3966780e-0f0a-4f8a-9646-f14b020ccca4.jpg?v=1773732415","url":"https:\/\/www.jslook.com\/products\/oem-mercedes-1277023621-0281008069","provider":"ASHENG","version":"1.0","type":"link"}