{"product_id":"high-output-alternator-for-jeep-grand-cherokee-2005-2006-3-7l-4-7l","title":"High Output Alternator for Jeep Grand Cherokee (2005-2006) 3.7L 4.7L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Output 250A Alternator for 2005-2006 Jeep Grand Cherokee (WK)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The high-output 250-amp alternator delivers upgraded charging capacity for the 2005-2006 Jeep Grand Cherokee to eliminate voltage drop caused by heavy electrical draws, winches, and auxiliary gear.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Jeep Grand Cherokee Charging System Limitations\u003c\/h3\u003e\n\u003cp\u003eFactory charging systems on the \u003cstrong\u003eWK\u003c\/strong\u003e platform rely on standard 136-amp or 160-amp alternators that struggle under sustained thermal and electrical loads. Once secondary accessories such as recovery winches, off-road lighting arrays, or high-draw inverters are added, the OEM diode bridge suffers from excessive heat soak. This leads to stator winding degradation, regulator clamp-down, and systemic voltage drops below 12.8V at idle, starving critical engine sensors and auxiliary battery banks.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis heavy-duty 250-amp unit replaces factory units with precision-wound high-temp copper stators and a heavy-duty avalanche diode rectifier pack. Engineered for the \u003cstrong\u003ePowerTech 3.7L V6\u003c\/strong\u003e and \u003cstrong\u003ePowerTech 4.7L V8\u003c\/strong\u003e, it features an upgraded internal voltage regulator and heavy-duty brush holder assembly designed to dissipate heat under peak duty cycles. The direct-bolt housing integrates seamlessly with factory serpentine belt routing while generating robust idle amperage alongside full 250-amp rated output at cruising RPMs.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 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;\"\u003e2005-2006 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;\"\u003e3.7L \/ 4.7L PowerTech \/ WK\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;\"\u003e210-235 hp \/ 235-305 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;\"\u003e334-1508, 04801252AA, 4801252AA, 5170748AA, 210-0484, 42100-0043, 421000-0311, 56029914AA, 13913, 421000-0040, 421000-0042, 13913N, 13913R, 13913-250A\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\u003e2005-2006 Jeep Grand Cherokee 3.7L\u003c\/li\u003e\n  \u003cli\u003e2005-2006 Jeep Grand Cherokee 4.7L\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 Grand Cherokee?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2005-2006 Jeep Grand Cherokee equipped with the \u003cstrong\u003e3.7L PowerTech V6\u003c\/strong\u003e or \u003cstrong\u003e4.7L PowerTech V8\u003c\/strong\u003e engine.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade my main power cabling?\u003c\/h4\u003e\n\u003cp\u003eYes, executing a \"Big 3\" electrical upgrade using 1\/0 or 2-gauge primary charging wire and heavy chassis grounds is strongly recommended to safely carry 250 amps.\u003c\/p\u003e\n\n\u003ch3\u003eThe Jeep Off-Road Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle intense trail recoveries and sustained auxiliary loads, this heavy-duty charging unit provides the rugged electrical reliability required for demanding overland trails and heavy towing conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67566267859192,"sku":"DS-ECGQS5WRZ","price":249.95,"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-2005-2006-3-7l-4-7l-1.jpg?v=1791085463","url":"https:\/\/performancechiptuning.com\/fr\/products\/high-output-alternator-for-jeep-grand-cherokee-2005-2006-3-7l-4-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}