{"product_id":"diesel-fuel-injector-return-line-assembly-for-2004-5-2010-duramax","title":"Diesel Fuel Injector Return Line Assembly for 2004.5-2010 Duramax","description":"\u003cp\u003eOur review of this diesel fuel injector return line assembly finds it best suited for owners and mechanics working on 2004.5-2010 GM Duramax 6.6L LLY, LBZ and LMM engines who need a durable, direct-replacement set to stop leaks and brittle-hose failures. The bottom line: this kit replaces worn or cracked return lines with thicker nitrile rubber hose and aluminum connectors that resist corrosion, so it addresses the common heat- and age-related failures without complicated modifications.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminum connectors:\u003c\/strong\u003e Corrosion-coated aluminum fittings reduce the chance of breakage during installation and resist long-term corrosion compared with plastic fittings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrile rubber hose:\u003c\/strong\u003e Thickened, oil-resistant nitrile rubber provides improved longevity against fuel exposure and heat stress compared with original brittle hoses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNylon braid and outer layer:\u003c\/strong\u003e A reinforced nylon braid and protective outer layer improve abrasion resistance and thermal insulation to reduce hose degradation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect replacement fit:\u003c\/strong\u003e Supplied to match OEM return line routing and replace part numbers 98062291, 97328732, 97328733, and 97359750 for a straightforward swap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit contents:\u003c\/strong\u003e Includes both left and right injector return lines, eight retainers, two O-rings and two stainless clamps to make installation complete for most repairs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is ideal for DIY mechanics, fleet technicians, or owners of 2004.5-2010 Chevrolet Silverado or GMC Sierra 2500HD\/3500HD trucks with the 6.6L Duramax engine who are replacing cracked or leaky fuel return hoses and want a more robust material choice. It is also a sensible preventative maintenance purchase for vehicles showing heat-related hose hardening or connector corrosion.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for vehicles outside the listed year and model range or for customers who require an identical OEM-branded assembly for warranty reasons; those users should verify fitment or seek OEM-sourced parts if a manufacturer warranty or dealer service requirement exists.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurable aluminum fittings reduce the risk of connector breakage during installation.\u003c\/li\u003e\n\u003cli\u003eThick nitrile rubber and nylon braid increase resistance to fuel, heat, and abrasion compared with older hoses.\u003c\/li\u003e\n\u003cli\u003eComes as a full set with retainers, O-rings and clamps, enabling a complete repair in one purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot an OEM-branded part, so some buyers who require factory-branded replacements may prefer to source from a dealer.\u003c\/li\u003e\n\u003cli\u003eFitment is limited to specified 2004.5-2010 GM Duramax models and related 2500\/3500 chassis; verify vehicle match before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003e2004.5-2010 GM Duramax 6.6L LLY LBZ LMM; Chevy Silverado\/Suburban 2500HD 3500HD; GMC Sierra\/Yukon 3\/4 TON; Cadillac Escalade 3\/4 TON\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplace Part Numbers\u003c\/td\u003e\n\u003ctd\u003e98062291, 97328732, 97328733, 97359750\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnector Material\u003c\/td\u003e\n\u003ctd\u003eAluminum alloy with anti-corrosion coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHose Material\u003c\/td\u003e\n\u003ctd\u003eThickened oil-resistant nitrile rubber with nylon braid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Items\u003c\/td\u003e\n\u003ctd\u003e2 return lines, 8 retainers, 2 O-rings, 2 stainless steel clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eReplace cracked or brittle fuel injector return hoses to prevent leaks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThis return line assembly is a practical, value-focused replacement for owners of compatible 2004.5-2010 Duramax trucks who want more durable materials than aging stock hoses. The aluminum fittings and reinforced nitrile hose reduce common failure modes, and the complete kit contents make it a convenient repair option for DIYers and shops alike.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my 2006 Silverado 3500HD with a Duramax?\u003c\/strong\u003e\u003cbr\u003eYes, the assembly lists compatibility with Silverado 2500HD and 3500HD models from 2004-2010 with the 6.6L Duramax; always verify engine and year before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the fittings metal or plastic?\u003c\/strong\u003e\u003cbr\u003eThe connectors are aluminum alloy with an anti-corrosion coating, so there are no plastic fittings on the assemblies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include clamps and O-rings?\u003c\/strong\u003e\u003cbr\u003eYes, the package includes 2 O-rings, 2 stainless steel clamps and eight retainers so most installs are complete with the kit.\u003c\/p\u003e","brand":"KPALAG","offers":[{"title":"Default Title","offer_id":48190463443163,"sku":"B0DDKPVWZC","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/616jeTPT6pL._AC_SL1500.jpg?v=1769516044","url":"https:\/\/gearmusthave.com\/products\/diesel-fuel-injector-return-line-assembly-for-2004-5-2010-duramax","provider":"GearMustHave","version":"1.0","type":"link"}