{"product_id":"high-output-alternator-for-jeep-grand-cherokee-2009-2018-5-7l","title":"High Output Alternator for Jeep Grand Cherokee (2009-2018) 5.7L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Output 300-Amp Alternator for 2009-2018 Jeep Grand Cherokee (WK\/WK2)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The 300-amp high-output alternator replaces the factory charging unit on the 2009-2018 Jeep Grand Cherokee to eliminate system voltage sag and supply stable electrical current for high-draw auxiliary accessories.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Jeep Grand Cherokee Charging System Limitations\u003c\/h3\u003e\n\u003cp\u003eFactory \u003cstrong\u003eWK\u003c\/strong\u003e and \u003cstrong\u003eWK2\u003c\/strong\u003e charging systems came equipped with 160-amp to 220-amp alternators engineered solely for base vehicle electronics. When running auxiliary accessories like recovery winches, high-intensity LED light bars, overland refrigeration, or aftermarket audio amplifiers, the factory unit suffers from severe thermal saturation and voltage drops below 12.6V under idle conditions. Continuous over-duty operation leads to premature diode pack failure, rotor burnout, and accelerated battery degradation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eManufactured in the USA, this direct-replacement 300-amp alternator utilizes dense hairpin copper windings and heavy-duty avalanche diode rectifiers to maximize electrical efficiency and thermal dissipation. Designed to deliver reliable output across low RPMs, it prevents voltage drop during low-speed rock crawling and high-demand winch cycling. Precision balancing and a durable housing resist harmonic vibration and heat soak across punishing engine bay conditions on the \u003cstrong\u003e5.7L HEMI V8\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x 300-Amp High Output Alternator\u003c\/li\u003e\n\u003c\/ul\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;\"\u003e2009-2018 Jeep Grand Cherokee\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;\"\u003e5.7L HEMI V8 (EZD\/EZH) \/ WK \u0026amp; WK2\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;\"\u003e360 hp \/ 390 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;\"\u003e048018333AB, 48018333AB, 4804833AB, 11575-300A\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\u003e2009-2010 Jeep Grand Cherokee (WK) 5.7L HEMI V8 (Limited, Overland)\u003c\/li\u003e\n  \u003cli\u003e2011-2018 Jeep Grand Cherokee (WK2) 5.7L HEMI V8 (Laredo, Limited, Overland, Summit, Trailhawk)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the WK\/WK2 Grand Cherokee?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct bolt-in fit for the 2009-2018 Jeep Grand Cherokee equipped with the \u003cstrong\u003e5.7L HEMI V8\u003c\/strong\u003e; it does not fit 3.6L Pentastar V6, 3.0L EcoDiesel, 6.1L, or 6.4L SRT models.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade my battery and ground cables for this unit?\u003c\/h4\u003e\n\u003cp\u003eYes, installing a 1\/0 AWG \"Big 3\" wiring upgrade is strongly recommended to safely carry 300 amps without excessive resistance or harness overheating.\u003c\/p\u003e\n\n\u003ch3\u003eThe Jeep Durability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle punishing trail conditions and high-amp recovery demands, this upgrade ensures dependable battery charging and electrical stability whether towing heavy loads or winching in remote backcountry.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67566364295416,"sku":"DS-EV1MG40O3","price":371.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-output-alternator-for-jeep-grand-cherokee-2009-2018-5-7l-1.jpg?v=1791087824","url":"https:\/\/performancechiptuning.com\/fr\/products\/high-output-alternator-for-jeep-grand-cherokee-2009-2018-5-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}