{"product_id":"dc4z-5j242-b-genuine-international®-diesel-exhaust-fluid-def-sensor-head","title":"DC4Z-5J242-B | Genuine International® Diesel Exhaust Fluid DEF Sensor Head","description":"\u003cp\u003e\u003cstrong\u003eDescription:\u003cbr\u003e\u003c\/strong\u003eA Diesel Exhaust Fluid (DEF) Sensor Head\u003cstrong\u003e DC4Z-5J242-B\u003c\/strong\u003e is a component of the DEF system that monitors the condition of the DEF inside the tank and sends that information to the vehicle’s computer.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: DC4Z-5J242-B, DC4Z5J242B\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003cspan\u003e: New\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eManufacture\/Brand\u003c\/strong\u003e\u003cspan\u003e: International\u003cbr\u003e\u003c\/span\u003e\u003cstrong data-end=\"176\" data-start=\"160\"\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003eFits DC4Z-5J242-B \u003c\/strong\u003eFor \u003cspan\u003eNavistar \/ International\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications DC4Z-5J242-B:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eElectrical Connector:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eDelphi Metri-Pack 15 5-Pin (Jumper Harness)\u003cbr\u003e\u003cstrong\u003eSensor Type:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAnalog\u003cbr\u003e\u003cstrong\u003eDEF Header\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003eHeight (IN):\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e11\u003cbr\u003e\u003cstrong\u003eDEF Suction\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003eFitting Dia. (IN):\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e3\/8 SAE J2044\u003cbr\u003e\u003cstrong\u003eDEF Return\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003eFitting Dia. (IN):\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e5\/16 SAE J2044\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003e\u003c\/span\u003eCoolant Inlet\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003eFitting Dia. (IN):\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e5\/8 Hose Bead\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003e\u003c\/span\u003eCoolant Outlet\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003eFitting Dia. (IN):\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e5\/8 Hose Bead\u003cbr\u003e\u003cstrong\u003eIn-Tank Filter\u003c\/strong\u003e\u003cstrong\u003e:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e40µ\u003cbr\u003e\u003cstrong\u003eTank Interface\u003c\/strong\u003e\u003cstrong\u003e:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4.05 Dia. Bore Seal\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul class=\"nav catalog\" id=\"catalogModels\"\u003e\u003c\/ul\u003e\n\u003cp data-end=\"353\" data-start=\"160\"\u003e\u003cstrong\u003ePurpose of using DC4Z-5J242-B:\u003c\/strong\u003e\u003cstrong data-end=\"597\" data-start=\"585\"\u003e\u003cbr\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 data-end=\"300\" data-start=\"263\"\u003e\n\u003cp data-end=\"300\" data-start=\"265\"\u003e\u003cstrong data-end=\"286\" data-start=\"265\"\u003eMeasure DEF level\u003c\/strong\u003e in the tank\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"332\" data-start=\"301\"\u003e\n\u003cp data-end=\"332\" data-start=\"303\"\u003e\u003cstrong data-end=\"330\" data-start=\"303\"\u003eMonitor DEF temperature\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"372\" data-start=\"333\"\u003e\n\u003cp data-end=\"372\" data-start=\"335\"\u003e\u003cstrong data-end=\"370\" data-start=\"335\"\u003eCheck DEF quality\/concentration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"418\" data-start=\"373\"\u003e\n\u003cp data-end=\"418\" data-start=\"375\"\u003e\u003cstrong data-end=\"416\" data-start=\"375\"\u003eDetect system faults or contamination\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"471\" data-start=\"419\"\u003e\n\u003cp data-end=\"471\" data-start=\"421\"\u003e\u003cstrong data-end=\"450\" data-start=\"421\"\u003eControl proper DEF dosing\u003c\/strong\u003e for the SCR system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"539\" data-start=\"472\"\u003e\n\u003cp data-end=\"539\" data-start=\"474\"\u003e\u003cstrong data-end=\"505\" data-start=\"474\"\u003eEnsure emissions compliance\u003c\/strong\u003e and prevent engine restrictions\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 data-end=\"353\" data-start=\"160\"\u003e\u003cstrong data-end=\"597\" data-start=\"585\"\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSigns of a Bad Diesel Exhaust Fluid DEF Sensor Head DC4Z-5J242-B:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp data-start=\"286\" data-end=\"330\"\u003e\u003cstrong data-start=\"293\" data-end=\"330\"\u003e1. Warning Lights and Fault Codes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"331\" data-end=\"695\"\u003e\n\u003cli data-start=\"331\" data-end=\"406\"\u003e\n\u003cp data-start=\"333\" data-end=\"406\"\u003e\u003cstrong data-start=\"333\" data-end=\"357\"\u003e“Check Engine” light\u003c\/strong\u003e or \u003cstrong data-start=\"361\" data-end=\"383\"\u003e“DEF system fault”\u003c\/strong\u003e message on the dash.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"407\" data-end=\"520\"\u003e\n\u003cp data-start=\"409\" data-end=\"520\"\u003e\u003cstrong data-start=\"409\" data-end=\"449\"\u003eSCR or emissions-related fault codes\u003c\/strong\u003e (often starting with \u003cstrong data-start=\"471\" data-end=\"480\"\u003eP20xx\u003c\/strong\u003e, such as P203F, P205B, P206A, P207F).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"521\" data-end=\"614\"\u003e\n\u003cp data-start=\"523\" data-end=\"614\"\u003e\u003cstrong data-start=\"523\" data-end=\"552\"\u003eDEF quality sensor errors\u003c\/strong\u003e or \u003cstrong data-start=\"556\" data-end=\"593\"\u003etemperature sensor circuit faults\u003c\/strong\u003e stored in the ECM.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"615\" data-end=\"695\"\u003e\n\u003cp data-start=\"617\" data-end=\"695\"\u003e\u003cstrong data-start=\"617\" data-end=\"641\"\u003e“Service DEF system”\u003c\/strong\u003e or \u003cstrong data-start=\"645\" data-end=\"683\"\u003e“Vehicle will derate in XXX miles”\u003c\/strong\u003e messages.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"702\" data-end=\"743\"\u003e\u003cstrong data-start=\"709\" data-end=\"743\"\u003e2. Incorrect DEF Level Reading\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"744\" data-end=\"989\"\u003e\n\u003cli data-start=\"744\" data-end=\"823\"\u003e\n\u003cp data-start=\"746\" data-end=\"823\"\u003eDEF gauge shows \u003cstrong data-start=\"762\" data-end=\"792\"\u003eempty or full all the time\u003c\/strong\u003e, regardless of actual level.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"824\" data-end=\"989\"\u003e\n\u003cp data-start=\"826\" data-end=\"989\"\u003eGauge fluctuates or drops suddenly after refilling the DEF tank.\u003cbr data-start=\"890\" data-end=\"893\"\u003e\u003cem data-start=\"896\" data-end=\"904\"\u003eCause:\u003c\/em\u003e DEF level sensor inside the header is malfunctioning or covered in crystallized DEF.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"996\" data-end=\"1038\"\u003e\u003cstrong data-start=\"1004\" data-end=\"1038\"\u003e3. DEF Freezing or Not Thawing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1039\" data-end=\"1253\"\u003e\n\u003cli data-start=\"1039\" data-end=\"1120\"\u003e\n\u003cp data-start=\"1041\" data-end=\"1120\"\u003eIn cold weather, the system \u003cstrong data-start=\"1069\" data-end=\"1095\"\u003etakes too long to thaw\u003c\/strong\u003e or never thaws at all.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1121\" data-end=\"1253\"\u003e\n\u003cp data-start=\"1123\" data-end=\"1253\"\u003eThe engine may \u003cstrong data-start=\"1138\" data-end=\"1148\"\u003ederate\u003c\/strong\u003e because frozen DEF can’t be injected.\u003cbr data-start=\"1186\" data-end=\"1189\"\u003e\u003cem data-start=\"1192\" data-end=\"1200\"\u003eCause:\u003c\/em\u003e The \u003cstrong data-start=\"1205\" data-end=\"1223\"\u003eheater element\u003c\/strong\u003e in the DEF header has failed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1260\" data-end=\"1309\"\u003e\u003cstrong data-start=\"1267\" data-end=\"1309\"\u003e4. DEF Quality or Concentration Errors\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1310\" data-end=\"1513\"\u003e\n\u003cli data-start=\"1310\" data-end=\"1513\"\u003e\n\u003cp data-start=\"1312\" data-end=\"1513\"\u003eECU reports \u003cstrong data-start=\"1324\" data-end=\"1344\"\u003epoor DEF quality\u003c\/strong\u003e or \u003cstrong data-start=\"1348\" data-end=\"1380\"\u003eincorrect urea concentration\u003c\/strong\u003e even when fresh DEF is used.\u003cbr data-start=\"1409\" data-end=\"1412\"\u003e\u003cem data-start=\"1415\" data-end=\"1423\"\u003eCause:\u003c\/em\u003e The \u003cstrong data-start=\"1428\" data-end=\"1446\"\u003equality sensor\u003c\/strong\u003e inside the header is faulty or contaminated with crystallized DEF.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1520\" data-end=\"1567\"\u003e\u003cstrong data-start=\"1527\" data-end=\"1567\"\u003e5. Engine Derate or Power Limitation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1568\" data-end=\"1798\"\u003e\n\u003cli data-start=\"1568\" data-end=\"1798\"\u003e\n\u003cp data-start=\"1570\" data-end=\"1798\"\u003eThe truck goes into \u003cstrong data-start=\"1590\" data-end=\"1603\"\u003elimp mode\u003c\/strong\u003e or \u003cstrong data-start=\"1607\" data-end=\"1649\"\u003ereduces speed (e.g., limited to 5 mph)\u003c\/strong\u003e after warnings are ignored.\u003cbr data-start=\"1677\" data-end=\"1680\"\u003e\u003cem data-start=\"1683\" data-end=\"1691\"\u003eCause:\u003c\/em\u003e The ECM forces derate to prevent emissions violations if it detects the SCR system isn’t working properly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1805\" data-end=\"1851\"\u003e\u003cstrong data-start=\"1812\" data-end=\"1851\"\u003e6. Crystallization or Contamination\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1852\" data-end=\"2099\"\u003e\n\u003cli data-start=\"1852\" data-end=\"1934\"\u003e\n\u003cp data-start=\"1854\" data-end=\"1934\"\u003eVisible \u003cstrong data-start=\"1862\" data-end=\"1880\"\u003ewhite crystals\u003c\/strong\u003e or buildup around the DEF tank or header connector.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1935\" data-end=\"2099\"\u003e\n\u003cp data-start=\"1937\" data-end=\"2099\"\u003e\u003cstrong data-start=\"1937\" data-end=\"1964\"\u003ePoor electrical contact\u003c\/strong\u003e due to corrosion or DEF leakage.\u003cbr data-start=\"1997\" data-end=\"2000\"\u003e\u003cem data-start=\"2003\" data-end=\"2011\"\u003eCause:\u003c\/em\u003e DEF exposure to air causes crystallization, which can damage sensors or block passages.\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 data-end=\"476\" data-start=\"97\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eAbout the Manufacturer – \u003c\/span\u003e\u003c\/strong\u003e\u003cstrong data-end=\"151\" data-start=\"97\"\u003eInternational \/ Navistar:\u003c\/strong\u003e\u003cbr data-end=\"154\" data-start=\"151\"\u003eInternational, a brand of \u003cstrong data-end=\"218\" data-start=\"180\"\u003eNavistar International Corporation\u003c\/strong\u003e, is a leading American manufacturer of commercial trucks, buses, and diesel engines. With a history dating back to the early 1900s, International is known for producing durable and reliable vehicles used in freight, construction, and municipal operations.\u003c\/p\u003e\n\u003cp data-end=\"707\" data-start=\"478\"\u003eNavistar has built a strong reputation in the trucking industry by focusing on innovation, performance, and long-term dependability. Their vehicles and components are trusted by fleets and drivers across North America and beyond.\u003c\/p\u003e","brand":"International","offers":[{"title":"Default Title","offer_id":50462935384311,"sku":"DC4Z-5J242-B","price":1179.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/7080\/3959\/files\/IMG_1678_2048x_abb6e7f5-fbb6-47f3-a7a6-afdbf1855b65.webp?v=1769642848","url":"https:\/\/forcetruckparts.com\/products\/dc4z-5j242-b-genuine-international%c2%ae-diesel-exhaust-fluid-def-sensor-head","provider":"Force Truck Parts","version":"1.0","type":"link"}