{"product_id":"aluminum-coolant-overflow-expansion-tank-for-dodge-magnum-2005-2008-2-7l-3-5l-5-7l-6-1l","title":"Aluminum Coolant Overflow Expansion Tank for Dodge Magnum (2005-2008) 2.7L 3.5L 5.7L 6.1L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHeavy-Duty Aluminum Coolant Overflow Expansion Tank for 2005-2008 Dodge Magnum (LX)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Aluminum Coolant Overflow Expansion Tank replaces the leak-prone factory plastic recovery bottle on the 2005-2008 Dodge Magnum to eliminate pressurized seam ruptures and maintain consistent cooling system pressure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Dodge Magnum Pressurized Reservoir Failure\u003c\/h3\u003e\n\u003cp\u003eOn the \u003cstrong\u003eLX\u003c\/strong\u003e platform, the factory cooling system utilizes a pressurized degas bottle positioned adjacent to the radiator. The OEM molded plastic reservoir degrades rapidly under extreme thermal cycling and engine bay radiant heat. Over time, plastic fatigue causes seam delamination, microscopic stress fractures, warped neck threads, and sheared heater hose nipples. When structural integrity fails, the system depressurizes, venting pressurized ethylene glycol, inducting atmospheric air into the water jackets, and inducing localized boiling or severe cylinder head overheating across both \u003cstrong\u003eLH\u003c\/strong\u003e V6 and \u003cstrong\u003eHEMI\u003c\/strong\u003e V8 platforms.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis high-strength expansion tank is fabricated from heavy-gauge .100-inch sheet aluminum, engineered to withstand extreme continuous hydraulic pressure spikes without deformation. Featuring precision TIG-welded structural seams and CNC-machined barbed inlet and outlet fittings, it resists UV embrittlement, coolant corrosion, and structural heat fatigue. The reinforced filler neck ensures positive pressure cap sealing, preserving cooling system boiling points under demanding load conditions while integrating directly into factory mounting provisions without hose modification.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2005-2008 Dodge Magnum\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eEER 2.7L, EGG 3.5L, EZB 5.7L, ESF 6.1L \/ LX\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e190-425 hp \/ 190-420 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e\n\u003cstrong\u003e4596466AG\u003c\/strong\u003e (4596466AC, 4596466AD, 4596466AE, 4596466AF), Dorman 603-056, NPM58501\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005 - 2008 Dodge Magnum SE 2.7L V6 (EER)\u003c\/li\u003e\n  \u003cli\u003e2005 - 2008 Dodge Magnum SXT 3.5L V6 (EGG)\u003c\/li\u003e\n  \u003cli\u003e2005 - 2008 Dodge Magnum R\/T 5.7L HEMI V8 (EZB)\u003c\/li\u003e\n  \u003cli\u003e2006 - 2008 Dodge Magnum SRT8 6.1L HEMI V8 (ESF)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the LX Magnum?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2005-2008 Dodge Magnum equipped with the \u003cstrong\u003e2.7L, 3.5L, 5.7L HEMI, or 6.1L SRT8\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eDoes this aluminum expansion tank reuse the factory pressure cap?\u003c\/h4\u003e\n\u003cp\u003eYes, the neck is engineered to mate directly with the OEM 16-18 PSI pressure relief cap and stock routing hoses.\u003c\/p\u003e\n\n\u003ch3\u003eThe Dodge Muscle Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the aggressive thermal demands of high-displacement American muscle, this aluminum expansion tank prevents catastrophic coolant venting whether idling in traffic or running wide-open throttle down the drag strip.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67525243863288,"sku":"DS-EIRMDMUJX","price":180.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/aluminum-coolant-overflow-expansion-tank-for-dodge-magnum-2005-2008-2-7l-3-5l-5-7l-6-1l-1.jpg?v=1790479244","url":"https:\/\/performancechiptuning.com\/es\/products\/aluminum-coolant-overflow-expansion-tank-for-dodge-magnum-2005-2008-2-7l-3-5l-5-7l-6-1l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}