{"product_id":"high-output-alternator-for-volkswagen-golf-1999-2002-1-8l-2-0l-2-8l","title":"High Output Alternator for Volkswagen Golf (1999-2002) 1.8L 2.0L 2.8L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Output 250-Amp Alternator for 1999-2002 Volkswagen Golf (Mk4)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The High Output Alternator replaces the factory charging unit on the 1999-2002 Golf to provide 250 amps of stable electrical current and eliminate voltage sag under high-demand accessories.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Volkswagen Golf Charging Limitations\u003c\/h3\u003e\n\u003cp\u003eFactory \u003cstrong\u003eMk4\u003c\/strong\u003e alternators are limited to 90-120 amps, which leaves virtually zero headroom once the stock electrical system, Climatronic, and engine management are powered. Introducing aftermarket audio systems, electric cooling fans, air ride compressors, or auxiliary lighting causes severe voltage drops at idle. Sustained electrical overload creates excessive heat soak inside the stock rectifier and stator windings, accelerating diode pack failure and causing light flickering, weak spark delivery, and sluggish starter operation.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered for high-current demands, this 250-amp alternator utilizes heavy-gauge hairpin copper windings and a heavy-duty avalanche diode rectifier to resist thermal breakdown. It delivers steady 14.4V charging output even during low-RPM stop-and-go driving. Manufactured with precision-machined aluminum end housings, it preserves factory serpentine belt offset and utilizes the OEM plug configuration. This allows a true direct bolt-on installation into the factory brackets across \u003cstrong\u003eEA113\u003c\/strong\u003e, \u003cstrong\u003eEA827\u003c\/strong\u003e, and \u003cstrong\u003eVR6\u003c\/strong\u003e engine bays without custom tensioning modifications.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 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: 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;\"\u003e1999-2002 Volkswagen Golf\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;\"\u003e1.8T, 2.0L, 2.8L VR6 \/ Mk4 (Typ 1J)\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;\"\u003e115-174 hp \/ 122-181 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;\"\u003e13850, 13850N, 021-903-025H, 0-124-315-002, AL0730X\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\u003e2000-2001 Volkswagen Golf 1.8L\u003c\/li\u003e\n  \u003cli\u003e2000-2001 Volkswagen Golf 2.0L\u003c\/li\u003e\n  \u003cli\u003e1999-2002 Volkswagen Golf 2.8L 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 Mk4 Golf?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 1999-2002 Volkswagen Golf equipped with the \u003cstrong\u003e1.8L\u003c\/strong\u003e, \u003cstrong\u003e2.0L\u003c\/strong\u003e, or \u003cstrong\u003e2.8L V6\u003c\/strong\u003e engines replacing OEM \u003cstrong\u003e021-903-025H\u003c\/strong\u003e and \u003cstrong\u003e13850\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade my vehicle wiring?\u003c\/h4\u003e\n\u003cp\u003eTo safely transfer the full 250-amp output under maximum accessory load, installing a heavy-gauge power wire and upgraded ground cables (Big 3 upgrade) is recommended.\u003c\/p\u003e\n\n\u003ch3\u003eThe Volkswagen Electrical Standard\u003c\/h3\u003e\n\u003cp\u003eEuropean vehicle architectures demand precise voltage regulation to safeguard sensitive CAN-bus modules and engine sensors, ensuring steady electrical current without triggering instrument cluster charge faults.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67621537677560,"sku":"DS-ELY4OIE3I","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-volkswagen-golf-1999-2002-1-8l-2-0l-2-8l-1.jpg?v=1791664314","url":"https:\/\/performancechiptuning.com\/es\/products\/high-output-alternator-for-volkswagen-golf-1999-2002-1-8l-2-0l-2-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}