{"product_id":"aluminum-coolant-overflow-expansion-tank-for-chrysler-300-2005-2010-2-7l-3-5l-5-7l-6-1l","title":"Aluminum Coolant Overflow Expansion Tank for Chrysler 300 (2005-2010) 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 2005-2010 Chrysler 300 (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 2005-2010 Chrysler 300 to eliminate pressurized coolant leaks and maintain stable cooling system pressure.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Chrysler 300 Coolant Reservoir Failure\u003c\/h3\u003e\n\u003cp\u003eThe factory coolant recovery reservoir on the \u003cstrong\u003eLX\u003c\/strong\u003e platform operates as a pressurized expansion tank adjacent to the radiator. Continual thermal cycling from the high-heat \u003cstrong\u003eHEMI\u003c\/strong\u003e and V6 powertrains, combined with standard 16-18 PSI operating pressures, severely degrades the factory blow-molded nylon. Over time, plastic fatigue creates stress micro-fractures along the seam welds, filler necks warp and break their pressure seal, and the lower outlet barb embrittles to the point of shearing, causing sudden coolant loss, overheating, and air intrusion into the cooling jacket.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eFabricated from 0.100-inch (2.5mm) structural sheet aluminum with precision TIG-welded seams, this expansion tank is engineered to withstand extreme thermal expansion and pressure spikes without fatigue. Aluminum exhibits superior tensile strength and will not crack, discolour, or degrade from continuous exposure to 220°F+ ethylene glycol mixtures and underhood UV radiation. Designed with CNC-machined hose fittings and integrated mounting brackets, it bolts directly into the factory location and utilizes OEM hose routings. Direct replacement for OEM part number \u003cstrong\u003e4596466AG\u003c\/strong\u003e.\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;\"\u003e2005-2010 Chrysler 300\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;\"\u003e2.7L (EER), 3.5L (EGG), 5.7L (EZB), 6.1L (ESF) \/ 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;\"\u003e178-425 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;\"\u003e4596466AG, 4596466AC, 4596466AD, 4596466AE, 4596466AF\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\u003e2005-2010 Chrysler 300 Base \/ Touring \/ Limited (2.7L \u0026amp; 3.5L V6)\u003c\/li\u003e\n  \u003cli\u003e2005-2010 Chrysler 300C (5.7L HEMI V8)\u003c\/li\u003e\n  \u003cli\u003e2005-2010 Chrysler 300C SRT8 (6.1L HEMI V8)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the LX 300?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2005-2010 Chrysler 300 equipped with the 2.7L, 3.5L, 5.7L HEMI, or 6.1L SRT8 HEMI engine.\u003c\/p\u003e\n\n\u003ch4\u003eCan I reuse the factory cooling lines and mounting hardware?\u003c\/h4\u003e\n\u003cp\u003eYes, this unit features exact-dimension barbs and mounting tabs designed to reuse your stock hoses and factory mounting locations.\u003c\/p\u003e\n\n\u003ch3\u003eThe Chrysler Muscle Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle the thermal demands of heavy V6 and high-displacement V8 muscle platforms, this all-aluminum tank provides structural reliability and zero pressure loss under demanding operating conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67525243764984,"sku":"DS-EKYGXXJBI","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-chrysler-300-2005-2010-2-7l-3-5l-5-7l-6-1l-1.jpg?v=1790479181","url":"https:\/\/performancechiptuning.com\/products\/aluminum-coolant-overflow-expansion-tank-for-chrysler-300-2005-2010-2-7l-3-5l-5-7l-6-1l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}