{"product_id":"fuel-injector-lines-fit-for-the-1989-91-cummins-engine-12v-5-9l-3960783-3960784","title":"Fuel Injector Lines Fit For the 1989-91 Cummins Engine 12V 5.9L 3960783 3960784","description":"\u003ch2\u003eFuel Injector Lines for Cummins\u003c\/h2\u003e\u003cp\u003eThese fuel injector lines deliver diesel to the injectors for 1989-1991 Cummins 12V 5.9L engines; OEM cross-reference numbers 3960783 and 3960784.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThese fuel injector lines are precision-formed to supply high-pressure fuel to each cylinder on 1989-1991 Cummins 12V 5.9L engines. Designed as a direct replacement set, these fuel injector lines restore proper fuel delivery and engine performance. They are intended for diesel technicians and owners maintaining Cummins-powered equipment.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eManufactured from heavy-duty steel to withstand high fuel pressure\u003c\/li\u003e\n\u003cli\u003ePre-bent to match the original routing for a hassle-free installation\u003c\/li\u003e\n\u003cli\u003eIncludes both injector line 3960783 and 3960784 for complete coverage\u003c\/li\u003e\n\u003cli\u003eResists corrosion and fatigue for long service life\u003c\/li\u003e\n\u003cli\u003eTested for proper flow and fitment before packaging\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor 1989 Cummins 12V 5.9L engine\u003c\/li\u003e\n\u003cli\u003efor 1990 Cummins 12V 5.9L engine\u003c\/li\u003e\n\u003cli\u003efor 1991 Cummins 12V 5.9L engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eUsed in Dodge Ram pickup trucks with Cummins 12V 5.9L diesel\u003c\/li\u003e\n\u003cli\u003eCommon on agricultural and industrial equipment powered by Cummins 5.9L\u003c\/li\u003e\n\u003cli\u003eRequires replacement when injector lines are worn, leaking, or damaged\u003c\/li\u003e\n\u003cli\u003eIdeal for engine rebuilds or fuel system overhauls\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3960783, 3960784\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1989-1991 Cummins 12V 5.9L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Are these injector lines a direct fit for my 1991 Cummins? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, these lines are manufactured to match the original specifications for 1989-1991 Cummins 12V 5.9L engines, but verify your specific engine serial number before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do these lines come as a complete set? \u003cstrong\u003eA:\u003c\/strong\u003e The set includes both injector lines (part numbers 3960783 and 3960784) needed for a six-cylinder engine block.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44962792767574,"sku":"ZZ2Z01547","price":102.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/12_c1d12f4a-ed8d-44b7-bf29-619ddd623045.jpg?v=1781614481","url":"https:\/\/www.solidspare.com\/products\/fuel-injector-lines-fit-for-the-1989-91-cummins-engine-12v-5-9l-3960783-3960784","provider":"Solid Spare","version":"1.0","type":"link"}