{"product_id":"4387659-f00bh40308-def-pump-backflow-return-connector-for-cummins-engines","title":"4387659, F00BH40308 | DEF Pump Backflow (Return) Connector | For Cummins® Engines","description":"\u003cp\u003e\u003cstrong\u003eProduct Overview:\u003c\/strong\u003e\u003cbr\u003eDEF Pump Backflow (Return) Connector PN 4387659 (Bosch F00BH40308) is a replacement return-line fitting for Bosch-built DEF supply modules (dosing pumps). It installs in the backflow\/return port of the pump and connects the DEF return line back to the tank. Per Cummins Technical Service Bulletin TSB150089, 4387659 is the existing backflow connector used with Cummins DEF dosing pumps 4387657 (12V) and 4387658 (24V).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Replacement:\u003c\/strong\u003e Replaces Cummins 4387659 and Bosch F00BH40308.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Cross-Reference:\u003c\/strong\u003e The same Bosch return connector is listed under Cummins, CAT, Hino, Volvo, John Deere, Nissan, Perkins and Case IH part numbers (see below).\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 4387659, Bosch F00BH40308, Dinex 5EL016, CAT 423-3253, Hino S17M0E0031, Volvo 24204464, John Deere RE549605, Nissan 20456LC40A, Perkins T400381, Case IH 47364249\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits DEF Pumps:\u003c\/strong\u003e Cummins 4387657 (12V, Bosch 0 444 042 134), Cummins 4387658 (24V, Bosch 0 444 042 137)\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\u003eCummins TSB150089: pumps 4387304 (12V) \/ 4387305 (24V) use the revised backflow connector 4387302 instead. Confirm which connector your pump and application require before ordering.\u003c\/li\u003e\n\u003cli\u003eCAT describes 423-3253 as a backflow connector with an integral filter and check valve. Please verify your part number when replacing a CAT connector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":68057148686588,"sku":"4387659","price":46.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/3206\/6044\/files\/4387659-def-pump-backflow-return-fitting-white.jpg?v=1793647416","url":"https:\/\/aftertreatmentparts.com\/products\/4387659-f00bh40308-def-pump-backflow-return-connector-for-cummins-engines","provider":"AftertreatmentParts.com","version":"1.0","type":"link"}