{"product_id":"4387302-def-pump-backflow-return-connector-revised-for-cummins-engines","title":"4387302 | DEF Pump Backflow (Return) Connector - Revised | For Cummins® Engines","description":"\u003cp\u003e\u003cstrong\u003eProduct Overview:\u003c\/strong\u003e\u003cbr\u003eDEF Pump Backflow (Return) Connector PN 4387302 is the revised backflow connector for Cummins DEF dosing pumps 4387304 (12V) and 4387305 (24V). Cummins introduced it in Technical Service Bulletin TSB150089 so that DEF is fully purged from the dosing lines, which prevents internal cracking and leakage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRevised Design:\u003c\/strong\u003e The revised connector specified for 4387304 \/ 4387305 pumps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces:\u003c\/strong\u003e Obsolete backflow connector 2888180 (used on obsolete pumps 2871879 \/ 2871880).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSold Individually:\u003c\/strong\u003e One backflow connector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Connector Numbers:\u003c\/strong\u003e Cummins 4387302, Dinex 5EL014\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits DEF Pumps:\u003c\/strong\u003e Cummins 4387304 (12V), Cummins 4387305 (24V), Dinex 5EL055 \/ 5EL058\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEngines (per TSB150089):\u003c\/strong\u003e ISB6.7 CM2350 B101, ISL9 CM2350 L101 \/ L111, ISX12 CM2350 X102, ISB \/ ISC \/ ISL CM2250\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInstallation Notes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTorque the connector to 4.5 N·m (40 in-lb). Do not over-tighten.\u003c\/li\u003e\n\u003cli\u003ePer TSB150089, off-highway units with an ECM calibration dated after December 1, 2015 must use the revised connector.\u003c\/li\u003e\n\u003cli\u003eSome OEM applications listed in TSB150089 (Table 2) use the 4387659 connector with pumps 4387657 \/ 4387658 instead. Confirm the requirement for your OEM before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":68057149079804,"sku":"4387302","price":46.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/3206\/6044\/files\/4387302-def-pump-backflow-return-fitting-white.jpg?v=1793647416","url":"https:\/\/aftertreatmentparts.com\/products\/4387302-def-pump-backflow-return-connector-revised-for-cummins-engines","provider":"AftertreatmentParts.com","version":"1.0","type":"link"}