{"product_id":"high-output-alternator-for-infiniti-qx4-2001-2002-3-5l","title":"High Output Alternator for Infiniti QX4 (2001-2002) 3.5L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Amp Direct-Replacement Alternator for 2001-2002 Infiniti QX4 (JR50)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The 250-Amp High Output Alternator replaces the factory charging unit on the 2001-2002 Infiniti QX4 to deliver increased current capacity and eliminate voltage drop under heavy electrical loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Infiniti QX4 Charging Limitations\u003c\/h3\u003e\n\u003cp\u003eThe original equipment alternator on the \u003cstrong\u003eJR50\u003c\/strong\u003e chassis outputs approximately 100 to 110 amps, which quickly falls short when supporting modern electrical modifications such as high-wattage sound systems, recovery winches, communication equipment, and auxiliary off-road lighting. At engine idle, factory units struggle to keep up with high amperage demands, leading to battery depletion, dimming lights, and excessive heat soak in the stock rectifier bridge. Over time, sustained thermal stress degrades the internal diode assembly and breaks down stator winding insulation, causing electrical failure and slow engine cranking.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a direct bolt-in upgrade, this 250-amp alternator utilizes high-density, heavy-gauge copper stator windings and a precision-balanced rotor to maximize magnetic field strength and deliver stable output even at low engine RPM. Built with premium dual-sealed bearings to mitigate harmonic vibration and an advanced internal voltage regulator calibrated for a consistent 13.5V to 14.5V charge profile, this unit protects delicate onboard modules on the \u003cstrong\u003eVQ35DE\u003c\/strong\u003e platform. It retains factory mounting geometry, factory belt alignment, and the original harness plug connector with zero wiring modifications required.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x 250-Amp High Output Alternator (Part # 13900)\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: solid font-size: min-width:\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;\"\u003e2001-2002 Infiniti QX4\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;\"\u003e\n\u003cstrong\u003eVQ35DE\u003c\/strong\u003e \/ \u003cstrong\u003eJR50\u003c\/strong\u003e\n\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;\"\u003e240 hp \/ 265 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\u003eAL2398X\u003c\/strong\u003e, \u003cstrong\u003e210-3150\u003c\/strong\u003e, \u003cstrong\u003eLR1110-712\u003c\/strong\u003e, \u003cstrong\u003e13900N\u003c\/strong\u003e, \u003cstrong\u003e23100-2W400\u003c\/strong\u003e, \u003cstrong\u003e23100-3W400\u003c\/strong\u003e\n\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\u003e2001 Infiniti QX4 3.5L V6\u003c\/li\u003e\n  \u003cli\u003e2002 Infiniti QX4 3.5L 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 JR50 QX4?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2001-2002 Infiniti QX4 equipped with the \u003cstrong\u003eVQ35DE\u003c\/strong\u003e 3.5L V6 engine.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade my factory wiring to run this 250A unit?\u003c\/h4\u003e\n\u003cp\u003eWhile it plugs directly into the factory harness, upgrading the main battery positive and ground wires (Big 3 upgrade) is strongly recommended to safely flow the full 250 amps without line resistance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Infiniti Capability Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the severe electrical loads required for trail recovery, overland expeditions, and auxiliary gear, this high-output alternator provides the electrical headroom and continuous duty reliability demanded by severe-use conditions.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67898815578360,"sku":"DS-EIVT7PL57","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-infiniti-qx4-2001-2002-3-5l-1.jpg?v=1793328362","url":"https:\/\/performancechiptuning.com\/de\/products\/high-output-alternator-for-infiniti-qx4-2001-2002-3-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}