{"product_id":"high-output-alternator-for-jeep-grand-cherokee-1999-2000-4-7l","title":"High Output Alternator for Jeep Grand Cherokee (1999-2000) 4.7L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Amp 200A Charging Upgrade for 1999-2000 Jeep Grand Cherokee (WJ)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The high-output 200-amp alternator replaces the low-output factory charging unit on the 1999-2000 Grand Cherokee to deliver sustained amperage at idle and eliminate voltage drop under demanding auxiliary electrical loads.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Jeep Grand Cherokee Charging Deficit\u003c\/h3\u003e\n\u003cp\u003eThe factory 136-amp alternator on the \u003cstrong\u003eWJ\u003c\/strong\u003e platform quickly falls short when running winches, secondary light bars, high-draw electric cooling fans, or onboard audio gear. At low trail-crawling RPM, the OEM stator cannot generate sufficient current, allowing system voltage to collapse below 13.5 volts. This continuous discharge cycle forces the battery to sustain auxiliary loads, subjecting the OEM rectifier and diode packs to extreme thermal stress, leading to premature diode burnout, dimming headlights, and stranded trail rigs.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered for high-demand electrical systems, this direct-fit 200-amp unit features heavy-gauge pure copper stator windings and a dynamic high-speed balanced rotor for maximum flux density. Premium sealed bearings minimize mechanical drag and withstand continuous high-heat duty cycles. An internal solid-state voltage regulator maintains a flat 13.5V to 14.5V output window without spiking. It retains factory mounting geometry, OE pulley offsets, and original harness connectivity matching OEM part \u003cstrong\u003e13790\u003c\/strong\u003e for seamless mechanical installation.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1x 200-Amp High Output Alternator (Direct replacement for OE \u003cstrong\u003e13790\u003c\/strong\u003e)\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;\"\u003e1999-2000 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;\"\u003e4.7L PowerTech V8 \/ WJ\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;\"\u003e235 hp \/ 295 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;\"\u003e13790\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\u003e1999 Jeep Grand Cherokee 4.7L V8 (WJ Chassis)\u003c\/li\u003e\n  \u003cli\u003e2000 Jeep Grand Cherokee 4.7L V8 (WJ Chassis)\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 WJ Grand Cherokee?\u003c\/h4\u003e\n\u003cp\u003eYes, this unit is a direct bolt-on fit for 1999-2000 Jeep Grand Cherokee models equipped with the \u003cstrong\u003e4.7L PowerTech V8\u003c\/strong\u003e engine; it does not fit the 4.0L inline-six.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade my charging cables?\u003c\/h4\u003e\n\u003cp\u003eWhile the unit connects directly to your OEM harness, upgrading the primary B+ charge lead and engine ground to a heavy 0-gauge circuit (Big 3 upgrade) is highly recommended to safely pull the full 200 amps without excessive line resistance.\u003c\/p\u003e\n\n\u003ch3\u003eThe Jeep Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the trail, this heavy-duty alternator ensures your \u003cstrong\u003eWJ\u003c\/strong\u003e maintains full system voltage during low-speed rock crawling, heavy recovery winching, and remote overlanding runs where electrical failure is not an option.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67896404574456,"sku":"DS-EP0MMRIL1","price":236.95,"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-1999-2000-4-7l-1.jpg?v=1793299650","url":"https:\/\/performancechiptuning.com\/de\/products\/high-output-alternator-for-jeep-grand-cherokee-1999-2000-4-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}