{"product_id":"4388105-genuine-oem-cummins-def-doser-pump-isbqsb","title":"4388105 | Genuine OEM Cummins DEF Doser Pump ISB\/QSB","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003e4388105 | Genuine OEM Cummins DEF Doser Pump ISB\/QSB\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 4388105 Genuine OEM Cummins DEF Doser Pump is a component designed for use in compatible Cummins ISB and QSB engine aftertreatment systems. This pump helps deliver Diesel Exhaust Fluid (DEF) to the emissions control system to support proper Selective Catalytic Reduction (SCR) operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePRODUCT INFORMATION\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePart Number: 4388105\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eBrand: Cummins\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eCondition: Genuine OEM\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eComponent: DEF Doser Pump\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFuel Type: Diesel\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eEngine Applications: Cummins ISB\/QSB (compatibility to be verified)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eOther important specifications: Diesel Exhaust Fluid dosing system component\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAPPLICATIONS\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 4388105 DEF Doser Pump is intended for applicable Cummins ISB and QSB engine configurations equipped with compatible DEF and SCR aftertreatment systems. Exact fitment should be confirmed using the original part number, engine serial number, and vehicle or equipment information.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFUNCTION\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe 4388105 DEF Doser Pump is designed to support the delivery of Diesel Exhaust Fluid into the exhaust aftertreatment system as part of the emissions control process. Proper operation helps support DEF dosing and the intended function of the SCR emissions control system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA worn, damaged, or failing DEF Doser Pump may cause symptoms such as:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDEF system warning messages\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSCR or aftertreatment system fault codes\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eImproper or interrupted DEF delivery\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEmissions control performance issues\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReduced aftertreatment system efficiency\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eEngine derating associated with emissions system faults\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThese symptoms may also be caused by other DEF system components or faults and do not necessarily confirm pump failure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWHY REPLACE A DEF DOSER PUMP?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA damaged or malfunctioning DEF Doser Pump can affect fluid delivery and proper aftertreatment system operation. Replacing it with the correct Genuine OEM Cummins component can help restore proper DEF delivery and support the intended function of the emissions control system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFITMENT INFORMATION\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBefore purchasing, verify the Part Number, VIN (where applicable), vehicle or equipment model, engine serial number, and aftertreatment system configuration to confirm the correct application. Do not assume compatibility based only on the Cummins ISB or QSB engine family.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf you are unsure whether this part is correct for your vehicle, please contact us with your VIN and original part number. We are happy to help verify compatibility before purchase.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGENUINE CUMMINS PART\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePart Number: 4388105\u003c\/span\u003e\u003c\/p\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":49874998296835,"sku":"SY1306","price":850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0838\/9289\/6003\/files\/4388105_DEF_Doser_Pump_2.png?v=1792197075","url":"https:\/\/truckpartsplanet.com\/products\/4388105-genuine-oem-cummins-def-doser-pump-isbqsb","provider":"TRUCK PARTS PLANET","version":"1.0","type":"link"}