{"product_id":"high-output-alternator-for-acura-tsx-2010-2014-3-5l","title":"High Output Alternator for Acura TSX (2010-2014) 3.5L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eHigh-Output 250A Alternator for 2010-2014 Acura TSX (CU4)\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 2010-2014 Acura TSX 3.5L to eliminate voltage sag and supply stable electrical current under heavy electrical demands.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Acura TSX Charging Limitations\u003c\/h3\u003e\n\u003cp\u003eThe OEM charging system on the \u003cstrong\u003eJ35Z3\u003c\/strong\u003e 3.5L V6 engine utilizes a stock 130-amp alternator engineered strictly for factory electrical loads. When adding high-draw aftermarket audio systems, auxiliary lighting, or performance electronics, the factory unit suffers severe thermal saturation and stator heat soak. Under high electrical draw at idle, the stock unit sags below 12.8V, generating excessive diode ripple, straining the battery, and causing persistent voltage fluctuations across the sensitive \u003cstrong\u003eCU4\u003c\/strong\u003e chassis CAN bus network.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eManufactured in the USA, this heavy-duty 250-amp alternator features precision hand-wound high-temperature copper stators, an upgraded rotor assembly, and heavy-duty 12-diode rectifier bridge cooling plates. Engineered to provide over 140 amps at idle and a sustained 250 amps at operating speeds, it delivers a consistent 14.4V charging output. This direct-replacement design maintains stock serpentine belt geometry and directly supersedes OEM part numbers \u003cstrong\u003e31100-RGW-A01\u003c\/strong\u003e and \u003cstrong\u003e104210-5920\u003c\/strong\u003e without mounting modifications.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x 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;\"\u003e2010-2014 Acura TSX\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;\"\u003eJ35Z3 (3.5L V6) \/ CU4\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;\"\u003e280 hp \/ 254 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;\"\u003e104210-5920, 11391N, 11391R, 31100-RGW-A01, 31100-RGW-A01RM, CSF92, 11391, 11391-250A\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\u003e2010-2014 Acura TSX 3.5L V6 Base Sedan (CU4)\u003c\/li\u003e\n  \u003cli\u003e2010-2014 Acura TSX 3.5L V6 Technology Package Sedan (CU4)\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 CU4 TSX?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct bolt-on fit for the 2010-2014 Acura TSX equipped with the \u003cstrong\u003eJ35Z3\u003c\/strong\u003e 3.5L V6 engine. \u003cstrong\u003eDoes not fit 2.4L 4-cylinder (K24Z3 \/ CU2 chassis) models due to alternate bracket and plug configurations.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eDo I need to upgrade my main power wiring?\u003c\/h4\u003e\n\u003cp\u003eYes, executing a 0-gauge or 4-gauge \"Big 3\" wiring upgrade (alternator positive to battery, engine ground, and chassis ground) is strongly advised to support 250-amp flow without creating thermal resistance bottlenecks.\u003c\/p\u003e\n\n\u003ch3\u003eThe Acura Engineering Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle the high electrical and thermal tolerances expected of premium JDM V6 platforms, this high-output unit ensures continuous voltage stability, maximum spark energy, and consistent charging performance under heavy power consumption.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67565777387768,"sku":"DS-EFSDC2JJ3","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-acura-tsx-2010-2014-3-5l-1.jpg?v=1791074965","url":"https:\/\/performancechiptuning.com\/fr\/products\/high-output-alternator-for-acura-tsx-2010-2014-3-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}