{"product_id":"fuel-return-pipe-fuel-line-3960041-for-cummins-engine-4b-4bt-replacement","title":"Fuel Return Pipe Fuel Line 3960041 for Cummins Engine 4B 4BT Replacement","description":"\u003cstrong\u003eThis Fuel Return Pipe \/ Fuel Line is a fuel system component compatible with Cummins Engine 4B and 4BT models and matches OEM Part# 3960041.\u003c\/strong\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis Fuel Return Pipe \/ Fuel Line 3960041 is a direct replacement for Cummins 4B and 4BT diesel engines. It carries excess fuel from the injectors back to the tank, maintaining proper system pressure. Ideal for industrial, agricultural, and marine applications using these engines.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOE-grade material resists diesel fuel corrosion and heat\u003c\/li\u003e\n\u003cli\u003ePre-bent to match original routing for hassle-free installation\u003c\/li\u003e\n\u003cli\u003eIncludes necessary fittings and connectors for a complete swap\u003c\/li\u003e\n\u003cli\u003eMaintains correct fuel return flow to prevent pressure buildup\u003c\/li\u003e\n\u003cli\u003eDurable construction withstands engine vibration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCummins 4B Engine\u003c\/li\u003e\n\u003cli\u003eCummins 4BT Engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplacement fuel return line on Cummins 4B and 4BT powered equipment\u003c\/li\u003e\n\u003cli\u003eUsed in generator sets, pumps, compressors, and agricultural machinery\u003c\/li\u003e\n\u003cli\u003eEssential for proper fuel system operation in heavy-duty diesel applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e 3960041\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fuel return pipe fit my Cummins 4BT engine?\u003cstrong\u003e A:\u003c\/strong\u003e Yes, it is specifically designed for Cummins 4B and 4BT engines. Verify your engine serial number to ensure compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this part the same as the OEM line?\u003cstrong\u003e A:\u003c\/strong\u003e It is manufactured to match OEM specifications and part number 3960041, providing an exact fit and function.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":53678103789841,"sku":"ZZ2Z01012","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/12_d938ce9b-d08a-4ef9-a308-45a45ca0b265.jpg?v=1781615040","url":"https:\/\/www.duraforce.com\/products\/fuel-return-pipe-fuel-line-3960041-for-cummins-engine-4b-4bt-replacement","provider":"DURAFORCE","version":"1.0","type":"link"}