{"product_id":"high-output-alternator-for-toyota-fj-cruiser-2007-2009-4-0l","title":"High Output Alternator for Toyota FJ Cruiser (2007-2009) 4.0L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Output 250-Amp Alternator for 2007-2009 Toyota FJ Cruiser (GSJ15)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The 250-Amp High Output Alternator replaces the low-output factory charging unit on the 2007-2009 Toyota FJ Cruiser to supply reliable, stable voltage to demanding auxiliary electronics and dual-battery systems.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Toyota FJ Cruiser Charging Limitation\u003c\/h3\u003e\n\u003cp\u003eFactory \u003cstrong\u003eGSJ15\u003c\/strong\u003e platforms equipped with the 4.0L \u003cstrong\u003e1GR-FE\u003c\/strong\u003e V6 utilize a stock alternator rated between 100 and 130 amps. Once an overland rig is outfitted with high-draw equipment—such as 12,000-lb recovery winches, onboard ARB air compressors, 12V camping fridges, and high-wattage auxiliary lighting—the aggregate electrical load surpasses stock stator capacity. At idle or low rock-crawling RPM, the factory unit experiences severe voltage droop under 12.5 volts. Prolonged saturation causes internal diode heat soak, accelerates stator coil degradation, and leaves vehicle starting batteries chronically undercharged in remote environments.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis 250-amp high-output replacement directly remedies electrical deficits by utilizing high-purity copper stator windings and a heavy-duty rectifier assembly built into a heat-dissipating cast housing. Engineered to directly supersede OEM numbers \u003cstrong\u003e104210-4920\u003c\/strong\u003e and \u003cstrong\u003e104210-4921\u003c\/strong\u003e, it produces substantial charging current at low engine idle while delivering a consistent 250 amps at operating speeds. Premium heavy-duty diodes tolerate continuous high-amperage recovery cycles without thermal fade, ensuring ignition systems and onboard electronics receive steady 14.2V-14.6V rail power under continuous load.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x 250-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;\"\u003e2007-2009 Toyota FJ Cruiser\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;\"\u003e1GR-FE \/ GSJ15\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;\"\u003e239 hp \/ 278 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;\"\u003e1042104921, 11324, 104210-4920, 1042104920, 104210-4921, 11324N, 11324R, 11138, 11138n, 11324n, 210-0612, 2100612, 11324-250A\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\u003e2007 Toyota FJ Cruiser 4.0L V6\u003c\/li\u003e\n  \u003cli\u003e2008 Toyota FJ Cruiser 4.0L V6\u003c\/li\u003e\n  \u003cli\u003e2009 Toyota FJ Cruiser 4.0L V6\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 GSJ15 FJ Cruiser?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct bolt-on fit for the 2007-2009 Toyota FJ Cruiser equipped with the single VVT-i \u003cstrong\u003e1GR-FE\u003c\/strong\u003e 4.0L V6 engine.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade my main charging cables with this 250A alternator?\u003c\/h4\u003e\n\u003cp\u003eYes, a \"Big 3\" heavy-gauge (1\/0 or 4 AWG) wiring upgrade from the alternator positive terminal to the battery and upgraded engine grounding straps are recommended to safely carry 250 amps without line resistance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Toyota Durability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for extreme off-road duty, technical recovery, and auxiliary battery maintenance under sustained overland conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67565644775672,"sku":"DS-EPFBNXOOT","price":404.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/high-output-alternator-for-toyota-fj-cruiser-2007-2009-4-0l-1.jpg?v=1791071002","url":"https:\/\/performancechiptuning.com\/es\/products\/high-output-alternator-for-toyota-fj-cruiser-2007-2009-4-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}