{"product_id":"4394756nx-genuine-cummins®-module-inlet-catalyst-for-epa17-isx-qsx-1","title":"4394756NX | Genuine Cummins® Module, Inlet Catalyst for Epa17, ISX\/QSX","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003eDescription\u003c\/strong\u003e: Module, Inlet Catalyst\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e: New\u003cbr\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e: Cummins®\u003cbr\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: \u003cspan\u003e4394756NX\u003c\/span\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003eFits For: \u003c\/strong\u003eEpa17, ISX\/QSX Engines\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eThe Inlet Catalyst Module\u003cstrong\u003e \u003cspan\u003e4394756NX\u003c\/span\u003e \u003c\/strong\u003ealso known as the Diesel Oxidation Catalyst (DOC), is the critical first stage of the \"Single Module™\" aftertreatment system used on large-bore Cummins engines like the X15, ISX15, and QSX15.\u003c\/div\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003ch3 data-path-to-node=\"2\"\u003eKey Characteristics:\u003c\/h3\u003e\n\u003cul data-path-to-node=\"3\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,0,0\"\u003e\u003cb data-path-to-node=\"3,0,0\" data-index-in-node=\"0\"\u003eThe \"Furnace\" of the System:\u003c\/b\u003e Its most important job for the 15-liter engine is to generate extreme heat. During a regeneration cycle, the engine's 7th injector (hydrocarbon doser) sprays fuel into the exhaust. This fuel \"burns\" inside the DOC, raising temperatures to over \u003cb data-path-to-node=\"3,0,0\" data-index-in-node=\"273\"\u003e550°C (1,000°F)\u003c\/b\u003e to clean the DPF.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,1,0\"\u003e\u003cb data-path-to-node=\"3,1,0\" data-index-in-node=\"0\"\u003eEPA17 Efficiency:\u003c\/b\u003e For the EPA17 standard, these modules are designed to be more compact yet more efficient at converting Nitrogen Oxide (NO) into Nitrogen Dioxide (\u003cspan class=\"math-inline\" data-math=\"NO_2\" data-index-in-node=\"164\"\u003eNO2\u003c\/span\u003e), which helps the downstream SCR system reduce smog-forming emissions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,2,0\"\u003e\u003cb data-path-to-node=\"3,2,0\" data-index-in-node=\"0\"\u003eHeavy-Duty Construction:\u003c\/b\u003e Because it handles the massive exhaust flow of a 15L engine, it is built with a reinforced stainless steel housing and a high-density precious metal coating (platinum\/palladium).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"3,3,0\"\u003e\u003cb data-path-to-node=\"3,3,0\" data-index-in-node=\"0\"\u003eThrough-Flow Design:\u003c\/b\u003e Unlike a filter, it is a flow-through device. If it becomes clogged (face-plugged), it is usually due to an upstream engine fault like a leaking turbocharger seal or a failing EGR cooler.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSigns of Faulty 4394756NX:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e \n\u003cul\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,0,0\"\u003e\u003cb data-path-to-node=\"2,0,0\" data-index-in-node=\"0\"\u003eRegeneration Failure \/ Low Temp Faults:\u003c\/b\u003e If the catalyst is \"deactivated\" or \"poisoned\" (from oil or coolant), it cannot reach the temperatures required to burn soot. You will see \u003cb data-path-to-node=\"2,0,0\" data-index-in-node=\"179\"\u003eFault Code 3167\u003c\/b\u003e or \u003cb data-path-to-node=\"2,0,0\" data-index-in-node=\"198\"\u003e1691\u003c\/b\u003e, and the vehicle will fail to complete a stationary (parked) regeneration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,1,0\"\u003e\u003cb data-path-to-node=\"2,1,0\" data-index-in-node=\"0\"\u003eRapid DPF Soot Loading:\u003c\/b\u003e Because the DOC isn't helping with \"passive\" regeneration, the DPF fills up with soot much faster than normal, leading to frequent \"Regen Required\" dashboard alerts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,2,0\"\u003e\u003cb data-path-to-node=\"2,2,0\" data-index-in-node=\"0\"\u003eFace Plugging (Soot Buildup):\u003c\/b\u003e If you remove the pipe and look at the inlet, you may see a thick layer of soot covering the honeycomb. This is often caused by a leaking \u003cb data-path-to-node=\"2,2,0\" data-index-in-node=\"168\"\u003e7th injector (Hydrocarbon Doser)\u003c\/b\u003e or excessive idling.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,3,0\"\u003e\u003cb data-path-to-node=\"2,3,0\" data-index-in-node=\"0\"\u003eBlue\/White Smoke During Regen:\u003c\/b\u003e If the DOC is weak, it won't fully \"cook\" the diesel sprayed into the exhaust. This unburnt fuel turns into thick white or blue-white smoke exiting the tailpipe during a regeneration cycle.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,4,0\"\u003e\u003cb data-path-to-node=\"2,4,0\" data-index-in-node=\"0\"\u003eProgressive Engine Derate:\u003c\/b\u003e As the module becomes restricted, backpressure increases. The ECM will eventually limit engine torque and speed to prevent turbocharger failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,5,0\"\u003e\u003cb data-path-to-node=\"2,5,0\" data-index-in-node=\"0\"\u003eThermal Damage (Melted Core):\u003c\/b\u003e In extreme cases of \"upstream\" fuel leaks, the DOC can experience an uncontrolled temperature spike, causing the internal substrate to melt or crack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer information:\u003c\/strong\u003e\u003cbr\u003eCummins® is a worldwide leader in the production of engines, agricultural components, and other power-generating devices for various industries, including medium and heavy duty trucks, light commercial vehicles, buses, agriculture, and construction. Founded in 1919, this company stays true to its mission of making people's lives better by continuously improving its product line-up and introducing new solutions for a more prosperous world. Its core values—integrity, diversity and inclusion, excellence, caring, and teamwork—are what make it a successful company today—a worldwide leader with a network of more than 600 company-owned and independent distributors and almost 6,000 dealers in approximately 190 countries.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003cbr\u003eFirst Truck Parts offers a \u003cstrong\u003e365-days warranty\u003c\/strong\u003e for all types of parts and in any condition. The warranty applies only to buyers who have placed an order on our website. \u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"position: absolute; left: 187px; top: 341px;\" id=\"gtx-trans\"\u003e\n\u003cdiv class=\"gtx-trans-icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Cummins®","offers":[{"title":"Default Title","offer_id":48037979390196,"sku":"4394756NX","price":3499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/1479\/5764\/files\/4394756_8.jpg?v=1701750959","url":"https:\/\/firsttruckparts.com\/products\/4394756nx-genuine-cummins%c2%ae-module-inlet-catalyst-for-epa17-isx-qsx-1","provider":"First Truck Parts","version":"1.0","type":"link"}