{"product_id":"4358939-genuine-cummins®-differential-pressure-sensor-isx15","title":"4358939 | Genuine Cummins® Differential Pressure Sensor ISX15","description":"\u003cp\u003e\u003cstrong\u003eDescription:\u003cbr\u003e\u003c\/strong\u003eA Differential Pressure Sensor \u003cstrong\u003e4358939 \u003c\/strong\u003eis a key emissions sensor on diesel vehicles. It helps the engine computer decide how full the Diesel Particulate Filter (DPF) is and when to clean it. Differential Pressure Sensor For \u003cspan\u003eEPA13 15 liter ISX\/QSX\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e: 4358939\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003cspan\u003e: New\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eManufacture\/Brand\u003c\/strong\u003e\u003cspan\u003e: Cummins\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong data-end=\"176\" data-start=\"160\"\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eFits 4358939 \u003c\/strong\u003eFor \u003cspan\u003eEPA13 15 liter ISX\/QSX\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eCummins Engines:\u003c\/strong\u003e 6C8.3, C GAS PLUS CM556, G8.3, G8.3 CM558, GTA8.3 CM558, ISC CM2150, ISC CM554, ISC CM850, ISC8.3 CM2250, ISC8.3 G CM2180 C101, ISL CM2150, ISL CM554, ISL CM850, ISL G CM2180, ISL8.9 CM2150 L110, ISL8.9 CM2880 L112, ISL9 CM2150 SN, ISL9 CM2250, ISL9 CM2350 L101, ISL9 CM2350 L111, ISLE4 CM850, L GAS PLUS CM556, L8.9, L8.9 L121, L8.9G CMOH2.0 L125B, L9 CM2350 L116B, L9 CM2350 L119B, L9 CM2350 L120C, L9 CM2350 L123B, L9.3 L105, L9.5 L117, L9N CM2380 L124B, QSC8.3 CM2250, QSC8.3 CM2880 C102, QSC8.3 CM554, QSC8.3 CM850(CM2850), QSL9 CM2250, QSL9 CM2250 L115, QSL9 CM2350 L102, QSL9 CM2350 L107, QSL9 CM2350 L118, QSL9 CM2350 L122, QSL9 CM554, QSL9 CM850(CM2850), QSL9 G CM558, QSL9 M CM2250 L106, QSL9.3 CM2880 L113\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSpecifications For 4358939:\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003eThreading: M8 x 1.25 x 25mm\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eOverall Length: 2-3\/4\"\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eConnector: Rectangular 3-Pin\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\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 4358939\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp data-start=\"275\" data-end=\"310\"\u003e\u003cstrong\u003e1. Measure DPF soot buildup\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"311\" data-end=\"348\"\u003eThe sensor tells the engine computer:\u003c\/p\u003e\n\u003cul data-start=\"349\" data-end=\"442\"\u003e\n\u003cli data-start=\"349\" data-end=\"397\"\u003e\n\u003cp data-start=\"351\" data-end=\"397\"\u003eHow hard exhaust is pushing \u003cstrong data-start=\"379\" data-end=\"389\"\u003ebefore\u003c\/strong\u003e the DPF\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"398\" data-end=\"442\"\u003e\n\u003cp data-start=\"400\" data-end=\"442\"\u003eHow free-flowing it is \u003cstrong data-start=\"423\" data-end=\"432\"\u003eafter\u003c\/strong\u003e the DPF\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"444\" data-end=\"519\"\u003eThe \u003cstrong data-start=\"448\" data-end=\"471\"\u003epressure difference\u003c\/strong\u003e directly shows \u003cstrong data-start=\"487\" data-end=\"518\"\u003ehow full of soot the DPF is\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"526\" data-end=\"560\"\u003e\u003cstrong\u003e2. Control DPF regeneration\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"561\" data-end=\"600\"\u003eUsing the sensor data, the ECM decides:\u003c\/p\u003e\n\u003cul data-start=\"601\" data-end=\"709\"\u003e\n\u003cli data-start=\"601\" data-end=\"633\"\u003e\n\u003cp data-start=\"603\" data-end=\"633\"\u003e\u003cstrong data-start=\"603\" data-end=\"633\"\u003eWhen to start regeneration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"634\" data-end=\"673\"\u003e\n\u003cp data-start=\"636\" data-end=\"673\"\u003e\u003cstrong data-start=\"636\" data-end=\"673\"\u003eHow long regeneration should last\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"674\" data-end=\"709\"\u003e\n\u003cp data-start=\"676\" data-end=\"709\"\u003e\u003cstrong data-start=\"676\" data-end=\"709\"\u003eWhen regeneration is complete\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"711\" data-end=\"725\"\u003eThis prevents:\u003c\/p\u003e\n\u003cul data-start=\"726\" data-end=\"804\"\u003e\n\u003cli data-start=\"726\" data-end=\"764\"\u003e\n\u003cp data-start=\"728\" data-end=\"764\"\u003eRegenerating too early (wastes fuel)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"765\" data-end=\"804\"\u003e\n\u003cp data-start=\"767\" data-end=\"804\"\u003eRegenerating too late (plugs the DPF)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"811\" data-end=\"856\"\u003e\u003cstrong\u003e3. Protect the engine \u0026amp; exhaust system\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"857\" data-end=\"912\"\u003eIf restriction gets too high, the sensor helps the ECM:\u003c\/p\u003e\n\u003cul data-start=\"913\" data-end=\"998\"\u003e\n\u003cli data-start=\"913\" data-end=\"943\"\u003e\n\u003cp data-start=\"915\" data-end=\"943\"\u003eReduce engine power (derate)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"944\" data-end=\"966\"\u003e\n\u003cp data-start=\"946\" data-end=\"966\"\u003ePrevent turbo damage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"967\" data-end=\"998\"\u003e\n\u003cp data-start=\"969\" data-end=\"998\"\u003eAvoid overheating the exhaust\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1005\" data-end=\"1044\"\u003e\u003cstrong\u003e4. Maintain emissions compliance\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1045\" data-end=\"1064\"\u003eThe sensor ensures:\u003c\/p\u003e\n\u003cul data-start=\"1065\" data-end=\"1185\"\u003e\n\u003cli data-start=\"1065\" data-end=\"1094\"\u003e\n\u003cp data-start=\"1067\" data-end=\"1094\"\u003eSoot is properly burned off\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1095\" data-end=\"1139\"\u003e\n\u003cp data-start=\"1097\" data-end=\"1139\"\u003eExhaust emissions stay within legal limits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1140\" data-end=\"1185\"\u003e\n\u003cp data-start=\"1142\" data-end=\"1185\"\u003eThe vehicle meets environmental regulations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1192\" data-end=\"1238\"\u003e\u003cstrong\u003e5. Alert the driver \u0026amp; store fault codes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1239\" data-end=\"1268\"\u003eThe sensor allows the ECM to:\u003c\/p\u003e\n\u003cul data-start=\"1269\" data-end=\"1373\"\u003e\n\u003cli data-start=\"1269\" data-end=\"1308\"\u003e\n\u003cp data-start=\"1271\" data-end=\"1308\"\u003eTurn on the DPF or check engine light\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1309\" data-end=\"1341\"\u003e\n\u003cp data-start=\"1311\" data-end=\"1341\"\u003eStore diagnostic trouble codes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1342\" data-end=\"1373\"\u003e\n\u003cp data-start=\"1344\" data-end=\"1373\"\u003eTell technicians what’s wrong\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 Differential Pressure Sensor 4358939\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-end=\"253\" data-start=\"221\"\u003e\u003cstrong\u003eWarning lights \u0026amp; messages\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"361\" data-start=\"254\"\u003e\n\u003cli data-end=\"277\" data-start=\"254\"\u003e\n\u003cp data-end=\"277\" data-start=\"256\"\u003e\u003cstrong data-end=\"277\" data-start=\"256\"\u003eDPF warning light\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"302\" data-start=\"278\"\u003e\n\u003cp data-end=\"302\" data-start=\"280\"\u003e\u003cstrong data-end=\"302\" data-start=\"280\"\u003eCheck Engine Light\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"361\" data-start=\"303\"\u003e\n\u003cp data-end=\"361\" data-start=\"305\"\u003eMessages like \u003cem data-end=\"345\" data-start=\"319\"\u003e“Service Exhaust System”\u003c\/em\u003e or \u003cem data-end=\"361\" data-start=\"349\"\u003e“DPF Full”\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"396\" data-start=\"368\"\u003e\u003cstrong\u003eRegeneration problems\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"569\" data-start=\"397\"\u003e\n\u003cli data-end=\"447\" data-start=\"397\"\u003e\n\u003cp data-end=\"447\" data-start=\"399\"\u003e\u003cstrong data-end=\"433\" data-start=\"399\"\u003eRegenerations happen too often\u003c\/strong\u003e (wastes fuel)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"482\" data-start=\"448\"\u003e\n\u003cp data-end=\"482\" data-start=\"450\"\u003e\u003cstrong data-end=\"482\" data-start=\"450\"\u003eRegeneration never completes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"532\" data-start=\"483\"\u003e\n\u003cp data-end=\"532\" data-start=\"485\"\u003eVehicle asks for \u003cstrong data-end=\"532\" data-start=\"502\"\u003eforced\/manual regeneration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"569\" data-start=\"533\"\u003e\n\u003cp data-end=\"569\" data-start=\"535\"\u003eStrong exhaust smell during regens\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"601\" data-start=\"576\"\u003e\u003cstrong\u003ePerformance issues\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"705\" data-start=\"602\"\u003e\n\u003cli data-end=\"635\" data-start=\"602\"\u003e\n\u003cp data-end=\"635\" data-start=\"604\"\u003e\u003cstrong data-end=\"635\" data-start=\"604\"\u003eReduced power \/ derate mode\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"659\" data-start=\"636\"\u003e\n\u003cp data-end=\"659\" data-start=\"638\"\u003eLimited vehicle speed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"684\" data-start=\"660\"\u003e\n\u003cp data-end=\"684\" data-start=\"662\"\u003ePoor throttle response\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"705\" data-start=\"685\"\u003e\n\u003cp data-end=\"705\" data-start=\"687\"\u003eLower fuel economy\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"749\" data-start=\"712\"\u003e\u003cstrong\u003eComputer \u0026amp; diagnostic symptoms\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1032\" data-start=\"750\"\u003e\n\u003cli data-end=\"906\" data-start=\"750\"\u003e\n\u003cp data-end=\"775\" data-start=\"752\"\u003eFault codes related to:\u003c\/p\u003e\n\u003cul data-end=\"906\" data-start=\"778\"\u003e\n\u003cli data-end=\"828\" data-start=\"778\"\u003e\n\u003cp data-end=\"828\" data-start=\"780\"\u003eDifferential pressure signal too high or too low\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"857\" data-start=\"831\"\u003e\n\u003cp data-end=\"857\" data-start=\"833\"\u003eSensor range\/performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"906\" data-start=\"860\"\u003e\n\u003cp data-end=\"906\" data-start=\"862\"\u003eDPF efficiency errors caused by bad readings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1032\" data-start=\"907\"\u003e\n\u003cp data-end=\"968\" data-start=\"909\"\u003eScan tool shows \u003cstrong data-end=\"968\" data-start=\"925\"\u003epressure readings that don’t make sense\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1032\" data-start=\"971\"\u003e\n\u003cli data-end=\"994\" data-start=\"971\"\u003e\n\u003cp data-end=\"994\" data-start=\"973\"\u003eHigh pressure at idle\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1032\" data-start=\"997\"\u003e\n\u003cp data-end=\"1032\" data-start=\"999\"\u003eNo change when revving the engine\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1065\" data-start=\"1039\"\u003e\u003cstrong\u003eElectrical symptoms\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"1190\" data-start=\"1066\"\u003e\n\u003cli data-end=\"1104\" data-start=\"1066\"\u003e\n\u003cp data-end=\"1104\" data-start=\"1068\"\u003eIntermittent issues (comes and goes)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1146\" data-start=\"1105\"\u003e\n\u003cp data-end=\"1146\" data-start=\"1107\"\u003eCodes return immediately after clearing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1190\" data-start=\"1147\"\u003e\n\u003cp data-end=\"1190\" data-start=\"1149\"\u003eScan tool sometimes can’t read the sensor\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\u003cspan style=\"font-size: 0.875rem;\"\u003eCummins:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"381\" data-start=\"0\"\u003eCummins is a leading American manufacturer of diesel and natural gas engines, as well as power generation systems and emissions solutions. Founded in 1919 and headquartered in Columbus, Indiana, Cummins is known globally for its durable, high-performance engines used in trucks, buses, construction equipment, agriculture, and power systems.\u003c\/p\u003e\n\u003cp data-end=\"628\" data-start=\"383\"\u003eThe brand is widely respected for its innovation in clean diesel technology, including aftertreatment systems, turbochargers, and advanced electronics that help reduce emissions while maximizing engine efficiency and reliability.\u003c\/p\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":50626325381367,"sku":"4358939","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/7080\/3959\/files\/4358939_EGR_Exhaust_Gas_Pressure_Sensor_DPF_Sensor_Differential_pressure_sensor_CUM4358939_Fits_Cummins_ISX12_and_ISX15_1622101610705_2.jpg_w2048.webp?v=1774548820","url":"https:\/\/forcetruckparts.com\/products\/4358939-genuine-cummins%c2%ae-differential-pressure-sensor-isx15","provider":"Force Truck Parts","version":"1.0","type":"link"}