{"product_id":"4101420-cummins-isx-dual-cam-cylinder-head-stage-2-inconel-exhaust","title":"4101420 \/ 5658283 Cummins ISX Dual Cam Loaded Cylinder Head – New, Stage 2 Inconel Exhaust","description":"\u003cp\u003eNew, fully loaded Stage 2 cylinder head for the \u003cstrong\u003eCummins ISX dual overhead cam (DOHC)\u003c\/strong\u003e, built to replace Cummins \u003cstrong\u003e4101420 and 5658283\u003c\/strong\u003e. Stage 2 adds Inconel exhaust valves. It arrives assembled and ready to bolt on, with no core to send back.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's Included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNew cylinder head casting\u003c\/li\u003e\n\u003cli\u003eNew intake and exhaust valves (Stage 2 — standard intake, Inconel exhaust)\u003c\/li\u003e\n\u003cli\u003eNew valve springs, retainers and keepers\u003c\/li\u003e\n\u003cli\u003eValve guides and valve stem seals installed\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot included:\u003c\/strong\u003e head gasket set, head bolts, injectors, rocker assemblies. Pair it with our \u003ca href=\"\/products\/jaks-pai-040116\"\u003eISX head bolt kit (PAI 040116)\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplaces\u003c\/td\u003e\n\u003ctd\u003eCummins 4101420, 5658283 and cross-references below\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine\u003c\/td\u003e\n\u003ctd\u003eCummins ISX dual cam (DOHC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eNew — no core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAssembly\u003c\/td\u003e\n\u003ctd\u003eLoaded (valves, springs, retainers, keepers, guides, seals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eValve package\u003c\/td\u003e\n\u003ctd\u003eStage 2 — standard intake, Inconel exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eJAK's Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eRunning more power? See the \u003ca href=\"\/products\/5658283-cummins-isx15-dual-cam-cylinder-head-stage-3-inconel-valves\"\u003eISX dual cam Stage 3 Inconel head\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Cummins ISX dual overhead cam engines. It does not fit the single-cam ISX15 \/ X15 — see our \u003ca href=\"\/products\/5658294-cummins-x15-single-cam-cylinder-head-stage-3-inconel-valves\"\u003eX15 single cam head\u003c\/a\u003e. We confirm fitment by engine serial number (ESN) or casting number before every head ships.\u003c\/p\u003e\n\n\u003ch2\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eOEM and reman numbers:\u003c\/strong\u003e 4101420, 4101421, 4101455, 5658283, 3104287, 3104291, 3104450, 3104451, 3412280, 3680855, 3680872, 3682863, 3683002, 3683003, 3683985, 3683986, 4026542, 4026626, 4026793, 4059225, 4059238, 4059247, 4059248, 4059432, 4331387, 4386011, 4925775, 4962731, 4962732, 5413782, 5413784\u003c\/p\u003e\n\n\u003ch2\u003eShipping, Core \u0026amp; Warranty\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo core charge, no core return.\u003c\/strong\u003e This is a new casting, not an exchange unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreight:\u003c\/strong\u003e ships crated by LTL freight. Freight is free to a commercial address with a forklift or dock. Residential, liftgate and terminal delivery can be quoted — call before you order.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocal pickup:\u003c\/strong\u003e available in Henderson, CO by arrangement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1 year against defects in materials and workmanship.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs this head new or remanufactured?\u003c\/h3\u003e\n\u003cp\u003eNew. It is a new casting assembled with new valvetrain components — not a rebuilt core.\u003c\/p\u003e\n\u003ch3\u003eDo I have to send back a core?\u003c\/h3\u003e\n\u003cp\u003eNo. There is no core charge and nothing to return.\u003c\/p\u003e\n\u003ch3\u003eWhat else do I need to install it?\u003c\/h3\u003e\n\u003cp\u003ePlan on a new head gasket set and head bolts for the ISX. They are not included. Message us and we will match the right kit to your engine serial number.\u003c\/p\u003e\n\u003ch3\u003eHow do I confirm it fits my ISX?\u003c\/h3\u003e\n\u003cp\u003eSend us your engine serial number (ESN) or the casting number from your old head. We verify fitment against 4101420 before the head ships.\u003c\/p\u003e\n\u003ch3\u003eWill a dual cam head fit a single cam X15?\u003c\/h3\u003e\n\u003cp\u003eNo. Dual cam (DOHC) and single cam (SOHC) heads are different castings. Dual cam is the pre-2010 ISX; check your ESN if you are not sure.\u003c\/p\u003e\n\u003ch3\u003eHow long does delivery take?\u003c\/h3\u003e\n\u003cp\u003eHeads are crated and handed to the LTL carrier in 1–2 business days. Transit is typically 2–5 business days depending on your location.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this head new or remanufactured?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"New. It is a new casting assembled with new valvetrain components - not a rebuilt core.\"}}, {\"@type\": \"Question\", \"name\": \"Do I have to send back a core?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. There is no core charge and nothing to return.\"}}, {\"@type\": \"Question\", \"name\": \"What else do I need to install it?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Plan on a new head gasket set and head bolts for the ISX. They are not included. Message us and we will match the right kit to your engine serial number.\"}}, {\"@type\": \"Question\", \"name\": \"How do I confirm it fits my ISX?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Send us your engine serial number (ESN) or the casting number from your old head. We verify fitment against 4101420 before the head ships.\"}}, {\"@type\": \"Question\", \"name\": \"Will a dual cam head fit a single cam X15?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. Dual cam (DOHC) and single cam (SOHC) heads are different castings. Dual cam is the pre-2010 ISX; check your ESN if you are not sure.\"}}, {\"@type\": \"Question\", \"name\": \"How long does delivery take?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Heads are crated and handed to the LTL carrier in 1-2 business days. Transit is typically 2-5 business days depending on your location.\"}}]}\u003c\/script\u003e\n\u003cp\u003eQuestions? Call JAK's Diesel at \u003ca href=\"tel:+17204456249\"\u003e(720) 445-6249\u003c\/a\u003e. See all \u003ca href=\"\/collections\/cummins-isx-isx15-parts\"\u003eCummins ISX parts\u003c\/a\u003e, \u003ca href=\"\/collections\/cummins-isx-dual-cam-rebuild-kits\"\u003eISX dual-cam rebuild kits\u003c\/a\u003e or \u003ca href=\"\/collections\/cylinder-heads\"\u003ediesel cylinder heads\u003c\/a\u003e.\u003c\/p\u003e","brand":"JAK's Diesel","offers":[{"title":"Default Title","offer_id":67863865458873,"sku":"JAKS-4101420S2","price":3649.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/6171\/4361\/files\/J4101420IV-2.png?v=1766805391","url":"https:\/\/www.jaksdiesel.com\/products\/4101420-cummins-isx-dual-cam-cylinder-head-stage-2-inconel-exhaust","provider":"JAK's Diesel","version":"1.0","type":"link"}