{"product_id":"5508583nx-genuine-cummins-def-doser-injector","title":"5508583NX Genuine Cummins DEF Doser Injector","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"84\" data-end=\"422\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe 5508583NX is a genuine Cummins DEF doser injector designed for compatible diesel exhaust fluid system applications including B6.7, L9, X12, and X15 engine platforms. It delivers controlled diesel exhaust fluid into the aftertreatment system to support SCR operation and maintain proper DEF injection during emissions system processes.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cp data-start=\"451\" data-end=\"578\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe 5508583NX DEF doser injector is manufactured to Cummins specifications for diesel exhaust fluid injection system operation.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-start=\"580\" data-end=\"1039\"\u003e\n\u003cli data-start=\"580\" data-end=\"654\"\u003eInjects DEF into the exhaust aftertreatment system during dosing events.\u003c\/li\u003e\n\u003cli data-start=\"655\" data-end=\"722\"\u003eRegulates diesel exhaust fluid delivery for SCR system operation.\u003c\/li\u003e\n\u003cli data-start=\"723\" data-end=\"804\"\u003eSupports DEF injection requirements across compatible Cummins engine platforms.\u003c\/li\u003e\n\u003cli data-start=\"805\" data-end=\"881\"\u003eConnects with factory emissions system components and mounting interfaces.\u003c\/li\u003e\n\u003cli data-start=\"882\" data-end=\"967\"\u003eMaintains controlled fluid distribution throughout aftertreatment operation cycles.\u003c\/li\u003e\n\u003cli data-start=\"968\" data-end=\"1039\"\u003eAssists proper emissions system function through accurate DEF dosing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGeneral Specifications\u003c\/h2\u003e\n\u003cdiv style=\"width: 100%; display: block;\"\u003e\n\u003ctable style=\"height: 156.4px; width: 100% !important; table-layout: fixed !important; display: table !important;\" class=\"product-table\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 29.6663%;\"\u003e \u003ccol style=\"width: 70.1483%;\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5508583NX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.4px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.4px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDEF Doser Injector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.4px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eVehicle Applications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eB6.7 CM2350 B121B, B6.7 CM2450 B155B, L9 CM2450 L126B, X12 CM2450 X137B, X15 CM2450 X124B, X15 CM2450 X134B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.4px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDiesel Exhaust Fluid System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.0 Ibs\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\u003eThe 5508583NX should be installed after inspecting the DEF injector mounting surface, electrical connector, DEF supply connection, and exhaust dosing point for contamination, leaks, or physical damage that could affect injection accuracy. After installation, verify secure electrical connection, confirm proper DEF flow, and perform the required aftertreatment system checks using compatible diagnostic equipment.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp\u003eAlways verify the part number, engine model, DEF system configuration, and aftertreatment application before installation.\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":43507055493183,"sku":"5508583NX","price":649.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/3971\/7695\/files\/57_f7077f3d-9544-48e2-abca-d62e4419347c.jpg?v=1778643496","url":"https:\/\/linetruckparts.com\/products\/5508583nx-genuine-cummins-def-doser-injector","provider":"Line Truck Parts","version":"1.0","type":"link"}