{"product_id":"a0001404378-genuine-detroit-diesel®-def-pump-hdep-air-assisted","title":"A0001404378 | Genuine Detroit Diesel® DEF Pump HDEP Air Assisted","description":"\u003cp\u003e\u003cstrong\u003eDescription:\u003cbr\u003e\u003c\/strong\u003eA DEF pump (Diesel Exhaust Fluid pump) is an electrically controlled pump that draws DEF from the tank, pressurizes it, and delivers it in a precisely controlled amount to the SCR emissions system on a diesel engine.\u003cbr\u003e\u003cstrong\u003e\u003cbr\u003ePart Number\u003c\/strong\u003e: A0001404378\u003cbr\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003cspan\u003e: New\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003eManufacture\/Brand\u003c\/strong\u003e\u003cspan\u003e: Detroit Diesel\u003cbr\u003e\u003cstrong\u003eRelated Part Numbers:\u003c\/strong\u003e RA0001404378, 0001404378\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong data-start=\"160\" data-end=\"176\"\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eFits A0001404378 \u003c\/strong\u003eFor \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eDetroit Diesel\u003c\/span\u003e\u003c\/span\u003e DD13, DD15, \u003cspan style=\"font-size: 0.875rem;\"\u003eDD16\u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e engines, \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eused in many Class 8 commercial trucks from \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eabout 2014 to 2023\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cstrong data-start=\"585\" data-end=\"597\"\u003e\u003c\/strong\u003e\u003cstrong data-start=\"585\" data-end=\"597\"\u003e\u003cbr\u003ePurpose of using A0001404378:\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=\"317\" data-start=\"284\"\u003e\u003cstrong\u003e1. Deliver DEF to the Exhaust\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"327\" data-start=\"318\"\u003eThe pump:\u003c\/p\u003e\n\u003cul data-end=\"407\" data-start=\"328\"\u003e\n\u003cli data-end=\"355\" data-start=\"328\"\u003e\n\u003cp data-end=\"355\" data-start=\"330\"\u003eDraws DEF from the tank\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"374\" data-start=\"356\"\u003e\n\u003cp data-end=\"374\" data-start=\"358\"\u003ePressurizes it\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"407\" data-start=\"375\"\u003e\n\u003cp data-end=\"407\" data-start=\"377\"\u003eSends it to the DEF injector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"463\" data-start=\"409\"\u003eWithout the pump, DEF cannot reach the exhaust stream.\u003c\/p\u003e\n\u003cp data-end=\"507\" data-start=\"470\"\u003e\u003cstrong\u003e2. Control Emissions (Reduce NOx)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"588\" data-start=\"509\"\u003eDiesel engines produce \u003cstrong data-end=\"557\" data-start=\"532\"\u003enitrogen oxides (NOx)\u003c\/strong\u003e, which are harmful pollutants.\u003c\/p\u003e\n\u003cp data-end=\"628\" data-start=\"590\"\u003eWhen DEF is injected into the exhaust:\u003c\/p\u003e\n\u003cul data-end=\"743\" data-start=\"629\"\u003e\n\u003cli data-end=\"654\" data-start=\"629\"\u003e\n\u003cp data-end=\"654\" data-start=\"631\"\u003eIt turns into ammonia\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"682\" data-start=\"655\"\u003e\n\u003cp data-end=\"682\" data-start=\"657\"\u003eAmmonia reacts with NOx\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"743\" data-start=\"683\"\u003e\n\u003cp data-end=\"743\" data-start=\"685\"\u003eConverts it into \u003cstrong data-end=\"730\" data-start=\"702\"\u003enitrogen and water vapor\u003c\/strong\u003e (safe gases)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"910\" data-start=\"745\"\u003eEngine manufacturers like \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eCummins Inc.\u003c\/span\u003e\u003c\/span\u003e and \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eDetroit Diesel\u003c\/span\u003e\u003c\/span\u003e rely on DEF pump systems to meet EPA emissions regulations.\u003c\/p\u003e\n\u003cp data-end=\"955\" data-start=\"917\"\u003e\u003cstrong\u003e3. Maintain Proper System Pressure\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"970\" data-start=\"957\"\u003eThe DEF pump:\u003c\/p\u003e\n\u003cul data-end=\"1106\" data-start=\"971\"\u003e\n\u003cli data-end=\"1014\" data-start=\"971\"\u003e\n\u003cp data-end=\"1014\" data-start=\"973\"\u003eKeeps correct pressure in the DEF lines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1052\" data-start=\"1015\"\u003e\n\u003cp data-end=\"1052\" data-start=\"1017\"\u003eAdjusts flow based on engine load\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1106\" data-start=\"1053\"\u003e\n\u003cp data-end=\"1106\" data-start=\"1055\"\u003eCommunicates with the engine control module (ECM)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1185\" data-start=\"1108\"\u003eMore engine load = more DEF required\u003cbr data-end=\"1147\" data-start=\"1144\"\u003eLess engine load = less DEF required\u003c\/p\u003e\n\u003cp data-end=\"1233\" data-start=\"1192\"\u003e\u003cstrong\u003e4. Prevent Crystallization \u0026amp; Freezing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1239\" data-start=\"1235\"\u003eDEF:\u003c\/p\u003e\n\u003cul data-end=\"1307\" data-start=\"1240\"\u003e\n\u003cli data-end=\"1267\" data-start=\"1240\"\u003e\n\u003cp data-end=\"1267\" data-start=\"1242\"\u003eFreezes at 12°F (-11°C)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1307\" data-start=\"1268\"\u003e\n\u003cp data-end=\"1307\" data-start=\"1270\"\u003eCan crystallize when exposed to air\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1331\" data-start=\"1309\"\u003eThe pump system often:\u003c\/p\u003e\n\u003cul data-end=\"1422\" data-start=\"1332\"\u003e\n\u003cli data-end=\"1352\" data-start=\"1332\"\u003e\n\u003cp data-end=\"1352\" data-start=\"1334\"\u003eIncludes heaters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1384\" data-start=\"1353\"\u003e\n\u003cp data-end=\"1384\" data-start=\"1355\"\u003ePurges lines after shutdown\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1422\" data-start=\"1385\"\u003e\n\u003cp data-end=\"1422\" data-start=\"1387\"\u003ePrevents DEF buildup in injectors\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\u003cstrong data-start=\"585\" data-end=\"597\"\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSigns of a Bad DEF Pump A0001404378:\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=\"200\" data-end=\"227\"\u003e\u003cstrong\u003e1. Check Engine Light\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"228\" data-end=\"329\"\u003e\n\u003cli data-start=\"228\" data-end=\"259\"\u003e\n\u003cp data-start=\"230\" data-end=\"259\"\u003eCheck engine light comes on\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"260\" data-end=\"296\"\u003e\n\u003cp data-start=\"262\" data-end=\"296\"\u003eDEF or emissions warning appears\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"297\" data-end=\"329\"\u003e\n\u003cp data-start=\"299\" data-end=\"329\"\u003e“Service DEF System” message\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"331\" data-end=\"428\"\u003eThe ECM monitors DEF pressure and flow. If pressure is too low or too high, it sets a fault code.\u003c\/p\u003e\n\u003cp data-start=\"430\" data-end=\"587\"\u003eSystems used by manufacturers like \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eCummins Inc.\u003c\/span\u003e\u003c\/span\u003e and \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eDetroit Diesel\u003c\/span\u003e\u003c\/span\u003e are very sensitive to DEF pressure faults.\u003c\/p\u003e\n\u003cp data-start=\"594\" data-end=\"632\"\u003e\u003cstrong\u003e2. Engine Derate (Reduced Power)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"633\" data-end=\"711\"\u003e\n\u003cli data-start=\"633\" data-end=\"654\"\u003e\n\u003cp data-start=\"635\" data-end=\"654\"\u003eTruck loses power\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"655\" data-end=\"670\"\u003e\n\u003cp data-start=\"657\" data-end=\"670\"\u003eRPM limited\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"671\" data-end=\"711\"\u003e\n\u003cp data-start=\"673\" data-end=\"711\"\u003eSpeed limited (often 55 mph or less)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"713\" data-end=\"782\"\u003eIf the problem isn’t fixed, the vehicle may enter severe derate mode.\u003c\/p\u003e\n\u003cp data-start=\"789\" data-end=\"816\"\u003e\u003cstrong\u003e3. DEF Pressure Codes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"817\" data-end=\"840\"\u003eCommon scan tool codes:\u003c\/p\u003e\n\u003cul data-start=\"841\" data-end=\"946\"\u003e\n\u003cli data-start=\"841\" data-end=\"861\"\u003e\n\u003cp data-start=\"843\" data-end=\"861\"\u003eLow DEF pressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"862\" data-end=\"890\"\u003e\n\u003cp data-start=\"864\" data-end=\"890\"\u003eUnable to build pressure\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"891\" data-end=\"921\"\u003e\n\u003cp data-start=\"893\" data-end=\"921\"\u003eDEF pump performance fault\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"922\" data-end=\"946\"\u003e\n\u003cp data-start=\"924\" data-end=\"946\"\u003eSCR efficiency fault\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"948\" data-end=\"997\"\u003eA scan tool will show pressure not reaching spec.\u003c\/p\u003e\n\u003cp data-start=\"1004\" data-end=\"1041\"\u003e\u003cstrong\u003e4. Hard Starting After Shutdown\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1042\" data-end=\"1107\"\u003eSome DEF systems purge fluid after shutdown.\u003cbr data-start=\"1086\" data-end=\"1089\"\u003eIf the pump fails:\u003c\/p\u003e\n\u003cul data-start=\"1108\" data-end=\"1218\"\u003e\n\u003cli data-start=\"1108\" data-end=\"1138\"\u003e\n\u003cp data-start=\"1110\" data-end=\"1138\"\u003eLines may stay pressurized\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1139\" data-end=\"1174\"\u003e\n\u003cp data-start=\"1141\" data-end=\"1174\"\u003eDEF may crystallize in injector\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1175\" data-end=\"1218\"\u003e\n\u003cp data-start=\"1177\" data-end=\"1218\"\u003eSystem may struggle during next startup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1225\" data-end=\"1262\"\u003e\u003cstrong\u003e5. DEF Leaks or Crystallization\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1263\" data-end=\"1355\"\u003e\n\u003cli data-start=\"1263\" data-end=\"1312\"\u003e\n\u003cp data-start=\"1265\" data-end=\"1312\"\u003eWhite crystal buildup around pump or fittings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1313\" data-end=\"1330\"\u003e\n\u003cp data-start=\"1315\" data-end=\"1330\"\u003eWet DEF lines\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1331\" data-end=\"1355\"\u003e\n\u003cp data-start=\"1333\" data-end=\"1355\"\u003eStrong ammonia smell\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1357\" data-end=\"1400\"\u003eCrystallized DEF is a common failure cause.\u003c\/p\u003e\n\u003cp data-start=\"1407\" data-end=\"1441\"\u003e\u003cstrong\u003e6. Excessive DEF Consumption\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1442\" data-end=\"1522\"\u003e\n\u003cli data-start=\"1442\" data-end=\"1472\"\u003e\n\u003cp data-start=\"1444\" data-end=\"1472\"\u003eUsing more DEF than normal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1473\" data-end=\"1522\"\u003e\n\u003cp data-start=\"1475\" data-end=\"1522\"\u003eSCR overcompensating due to pressure problems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1529\" data-end=\"1577\"\u003e\u003cstrong\u003e7. Frozen DEF System (Cold Weather Issues)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1578\" data-end=\"1612\"\u003eSince DEF freezes at 12°F (-11°C):\u003c\/p\u003e\n\u003cul data-start=\"1613\" data-end=\"1689\"\u003e\n\u003cli data-start=\"1613\" data-end=\"1662\"\u003e\n\u003cp data-start=\"1615\" data-end=\"1662\"\u003ePump heater failure may cause pressure faults\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1663\" data-end=\"1689\"\u003e\n\u003cp data-start=\"1665\" data-end=\"1689\"\u003eDEF system won’t prime\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\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"97\" data-end=\"476\"\u003e\u003cstrong data-start=\"97\" data-end=\"151\"\u003eAbout the Manufacturer – Detroit Diesel\u003c\/strong\u003e\u003cstrong data-start=\"97\" data-end=\"151\"\u003e:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"396\" data-start=\"0\"\u003e\u003cstrong data-end=\"18\" data-start=\"0\"\u003eDetroit Diesel\u003c\/strong\u003e is a leading American manufacturer of \u003cstrong data-is-only-node=\"\" data-end=\"129\" data-start=\"57\"\u003eheavy-duty diesel engines, transmissions, and aftertreatment systems\u003c\/strong\u003e, primarily for the commercial trucking industry. Founded in 1938 and now a subsidiary of \u003cstrong data-end=\"250\" data-start=\"219\"\u003eDaimler Truck North America\u003c\/strong\u003e, Detroit is best known for its \u003cstrong data-end=\"303\" data-start=\"282\"\u003eDD Series engines\u003c\/strong\u003e — including the \u003cstrong data-end=\"344\" data-start=\"320\"\u003eDD13, DD15, and DD16\u003c\/strong\u003e — which power Freightliner and Western Star trucks.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"791\" data-start=\"398\"\u003eDetroit also produces advanced technologies such as \u003cstrong data-end=\"468\" data-start=\"450\"\u003eDetroit™ Axles\u003c\/strong\u003e, \u003cstrong data-end=\"490\" data-start=\"470\"\u003eDetroit™ Connect\u003c\/strong\u003e telematics, and \u003cstrong data-end=\"533\" data-start=\"507\"\u003eintegrated powertrains\u003c\/strong\u003e, offering fleet operators improved fuel efficiency, uptime, and diagnostics. The company is headquartered in \u003cstrong data-end=\"664\" data-start=\"643\"\u003eDetroit, Michigan\u003c\/strong\u003e, and continues to play a central role in modernizing emissions systems and performance standards in heavy-duty transportation.\u003c\/p\u003e","brand":"Detroit Diesel","offers":[{"title":"Default Title","offer_id":50515986186487,"sku":"A0001404378","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0895\/7080\/3959\/files\/a0001404378-genuine-detroit-diesel-def-pump-advanced-truck-parts-68696.webp?v=1771966939","url":"https:\/\/forcetruckparts.com\/products\/a0001404378-genuine-detroit-diesel%c2%ae-def-pump-hdep-air-assisted","provider":"Force Truck Parts","version":"1.0","type":"link"}