{"product_id":"oem-chevrolet-12661098-diesel-pm-sensor","title":"Diesel Particulate Matter Sensor 12661098 for Chevrolet Silverado GMC Sierra 3.0 Duramax Diesel Emission System","description":"\u003cp\u003eFitment Level: OE Match \/ Platform Verified\u003c\/p\u003e\n\u003cp\u003eCompatible with GM diesel emission aftertreatment systems using OEM references:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e12661098\u003c\/li\u003e\n\u003cli\u003e12662647 (updated replacement)\u003c\/li\u003e\n\u003cli\u003eBosch PM sensor family (commonly 0281007879 \/ 0281008982 depending on calibration)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTypical applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChevrolet Silverado 1500 3.0 Duramax diesel (LM2 \/ LZ0)\u003c\/li\u003e\n\u003cli\u003eGMC Sierra 1500 3.0 Duramax diesel\u003c\/li\u003e\n\u003cli\u003eChevrolet Tahoe \/ Suburban 3.0 Duramax (selected configurations)\u003c\/li\u003e\n\u003cli\u003eGM light-duty diesel platforms with DPF soot monitoring 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\u003everify DPF regeneration efficiency\u003c\/li\u003e\n\u003cli\u003edetect soot breakthrough or filter degradation\u003c\/li\u003e\n\u003cli\u003eoptimize regeneration intervals\u003c\/li\u003e\n\u003cli\u003emaintain emissions compliance for EPA \/ Euro-equivalent diesel systems\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 pressure sensor.\u003cbr\u003eIt directly measures soot concentration after the DPF and is essential for GM Duramax emissions control strategy and regeneration logic.\u003c\/p\u003e\n\u003cp\u003eFitment must always be confirmed strictly by OEM number (12661098), as GM often supersedes PM sensor revisions depending on engine generation (LM2 vs LZ0) and calibration updates.\u003c\/p\u003e","brand":"ASHENG","offers":[{"title":"Default Title","offer_id":51636271710340,"sku":"12661098","price":155.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/8313\/1012\/files\/12_bdbf98d2-2054-42f7-b17b-2356e959105b.jpg?v=1773732490","url":"https:\/\/www.jslook.com\/products\/oem-chevrolet-12661098-diesel-pm-sensor","provider":"ASHENG","version":"1.0","type":"link"}