{"product_id":"4326872-genuine-cummins-nox-nitrogen-oxide-exhaust-sensor","title":"4326872 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-end=\"543\" data-start=\"87\"\u003eThe 4326872 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for select Peterbilt and Ottawa truck applications with Cummins ISX12 and ISX15 engines. This sensor operates in the exhaust emissions control system by measuring nitrogen oxide levels and sending data to the ECM for SCR, DEF, and EGR system operation. \u003c\/p\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003csection data-turn=\"assistant\" data-testid=\"conversation-turn-34\" data-turn-id-container=\"request-WEB:b5e1bfad-6bed-4dc7-bd14-254f34a2591e-25\" data-turn-id=\"request-WEB:b5e1bfad-6bed-4dc7-bd14-254f34a2591e-25\" dir=\"auto\" class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-turn-start-message=\"true\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-message-model-slug=\"gpt-5-5-thinking\" dir=\"auto\" data-message-id=\"1ff028b5-c1f5-45af-9b3a-039db7311bbf\" data-message-author-role=\"assistant\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full dark markdown-new-styling\"\u003e\n\u003cp data-start=\"1087\" data-end=\"1242\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe 4326872 Nox Nitrogen Oxide Sensor is manufactured to Cummins factory specifications for exhaust emissions measurement and after-treatment system input.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-start=\"1244\" data-end=\"1772\"\u003e\n\u003cli data-start=\"1244\" data-end=\"1321\"\u003eReads exhaust NOx content so the ECM can monitor emissions system activity.\u003c\/li\u003e\n\u003cli data-start=\"1322\" data-end=\"1383\"\u003eProvides the signal input used to coordinate SCR operation.\u003c\/li\u003e\n\u003cli data-start=\"1384\" data-end=\"1455\"\u003eHelps the DEF dosing strategy respond to measured exhaust conditions.\u003c\/li\u003e\n\u003cli data-start=\"1456\" data-end=\"1530\"\u003eSupplies emissions feedback used during EGR and after-treatment control.\u003c\/li\u003e\n\u003cli data-start=\"1531\" data-end=\"1605\"\u003eSupports diagnostic monitoring for NOx sensor and SCR efficiency faults.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"width: 100%; display: block;\"\u003e\n\u003ctable class=\"product-table\" style=\"height: 68.8px; width: 100% !important; table-layout: fixed !important; display: table !important;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 29.5666%;\"\u003e \u003ccol style=\"width: 70.1238%;\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4326872\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNox Nitrogen Oxide Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp data-end=\"2650\" data-start=\"2329\"\u003eThe 4326872 should be installed in the correct exhaust sensor location with the connector fully seated and the harness checked for heat damage, corrosion, or loose terminals. Confirm ECM communication after installation and clear any active NOx, SCR, or DEF-related diagnostic codes before returning the truck to service.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\" data-end=\"2806\" data-start=\"2652\"\u003eVerify part number, VIN, engine configuration, production date, emissions package, and applicable factory options before installation.\u003cspan class=\"PDq2pG_selectionAnchor\" aria-hidden=\"true\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":43455345328191,"sku":"4326872","price":368.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/3971\/7695\/files\/s-l1600_02282bd8-bb9e-470e-9608-10cde4ae4724.webp?v=1792078996","url":"https:\/\/linetruckparts.com\/products\/4326872-genuine-cummins-nox-nitrogen-oxide-exhaust-sensor","provider":"Line Truck Parts","version":"1.0","type":"link"}