{"title":"Infiniti QX4 High Output Alternators","description":"\u003cp\u003eUnderneath its leather and wood trim, the Infiniti QX4 is a body-on-frame SUV with real trail ability, and the 2001-2003 3.5L models have a loyal following among budget overlanders. This page lists the two Mechman 400 amp units for those years, so you can fit an Infiniti QX4 high output alternator that keeps up with lights, a winch and camp gear.\u003c\/p\u003e","products":[{"product_id":"mechman-amp-machined-billet-alternator-for-nissan-infiniti-3-5l-b11051400m","title":"Mechman 400 Amp Machined Billet Alternator for Nissan \u0026 Infiniti 3.5L B11051400M","description":"\u003cp\u003eThis 400-amp high-output alternator is engineered for demanding Nissan applications where consistent, high-current power is critical. Designed for vehicles running large audio systems, auxiliary electronics, winches, lighting, and other high-draw accessories, it delivers stable voltage under load where factory charging systems fall short.\u003c\/p\u003e\n\u003cp\u003eBuilt in the USA using premium components, this alternator is designed for continuous high-amperage output with reliability as the priority. Strong idle output and a broad usable RPM range help maintain voltage stability during real-world driving conditions, not just at peak engine speeds. Each unit is hand-assembled and tested to ensure consistent performance and long service life.\u003c\/p\u003e\n\u003cp\u003eLike most high-output alternators, this unit is equipped with a smaller overdrive pulley to help maintain maximum output at idle and will typically require a belt that is 1\/2 inch to 1 inch shorter than the factory belt to achieve proper belt tension.\u003c\/p\u003e\n\u003cp\u003eTo simplify installation, the alternator includes a dedicated adapter plug. One side connects directly to the alternator, while the opposite side plugs into the factory vehicle harness, allowing for a clean, plug-and-play electrical connection without modification to the OEM wiring.\u003c\/p\u003e\n\u003cp\u003eFeatures include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e400 amps of peak output for extreme electrical demand\u003c\/li\u003e\n\u003cli\u003eStrong idle output and improved voltage stability under load\u003c\/li\u003e\n\u003cli\u003eOverdrive pulley included to enhance low-RPM performance\u003c\/li\u003e\n\u003cli\u003ePlug-and-play adapter harness included for direct factory connection\u003c\/li\u003e\n\u003cli\u003eHeavy-duty internal components designed for sustained high-current operation\u003c\/li\u003e\n\u003cli\u003eDirect-fit design for select Nissan applications\u003c\/li\u003e\n\u003cli\u003eIdeal for high-power audio systems, off-road accessories, lighting, and auxiliary power needs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor Nissan owners pushing serious electrical loads, this Mechman 400-amp alternator delivers dependable, high-output charging performance built for both daily use and demanding environments.\u003c\/p\u003e\n\u003ch2\u003eFitment Table | B11051400M – Plug Code: 300\u003c\/h2\u003e\n\u003ctable class=\"table-bootstrap\"\u003e\n\u003ctbody\u003e\u003c\/tbody\u003e\n\u003cthead class=\"thead-dark-bootstrap\"\u003e\n\u003ctr\u003e\n\u003cth\u003eMake \/ Model\u003c\/th\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eEngine Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInfiniti FX35\u003c\/td\u003e\n\u003ctd\u003e2003-2008\u003c\/td\u003e\n\u003ctd\u003e3.5L V6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInfiniti G35\u003c\/td\u003e\n\u003ctd\u003e2003-2006\u003c\/td\u003e\n\u003ctd\u003e3.5L V6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInfiniti QX4\u003c\/td\u003e\n\u003ctd\u003e2003\u003c\/td\u003e\n\u003ctd\u003e3.5L V6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan 350Z\u003c\/td\u003e\n\u003ctd\u003e2003-2006\u003c\/td\u003e\n\u003ctd\u003e3.5L V6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNissan Pathfinder\u003c\/td\u003e\n\u003ctd\u003e2003-2004\u003c\/td\u003e\n\u003ctd\u003e3.5L V6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eInstallation Notes:\u003c\/p\u003e\n\u003cp\u003eThis unit comes equipped with a smaller 1.75-inch diameter alternator pulley and will require a slightly shorter drive belt for proper belt tension.  Not recommended for sustained use above 5,000 RPM engine speed. \u003cstrong\u003eIf a larger pulley is required\u003c\/strong\u003e, please reach out to Mechman’s support team and we can work to get you an underdrive pulley to meet your RPM demands.\u003c\/p\u003e","brand":"Mechman","offers":[{"title":"Default Title","offer_id":52958146035823,"sku":"B11051400M","price":649.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/0519\/9727\/files\/B11256XXXM-001_0285efc6-ac09-4a2b-b229-17574d842c15.png?v=1776275969"},{"product_id":"mechman-400-amp-machined-billet-alternator-for-nissan-infiniti-3-5l-b13900400m","title":"Mechman 400 Amp Machined Billet Alternator for Nissan \u0026 Infiniti 3.5L B13900400M","description":"\u003cp\u003eThis  400-amp high-output alternator is engineered for demanding Nissan  applications where consistent, high-current power is critical.  Designed for vehicles running large audio systems, auxiliary  electronics, winches, lighting, and other high-draw accessories, it  delivers stable voltage under load where factory charging systems  fall short.\u003c\/p\u003e\n\u003cp\u003eBuilt  in the USA using premium components, this alternator is designed for  continuous high-amperage output with reliability as the priority.  Strong idle output and a broad usable RPM range help maintain voltage  stability during real-world driving conditions, not just at peak  engine speeds. Each unit is hand-assembled and tested to ensure  consistent performance and long service life.\u003c\/p\u003e\n\u003cp\u003eLike  most high-output alternators, this unit is equipped with a smaller  overdrive pulley to help maintain maximum output at idle and will  typically require a belt that is 1\/2 inch to 1 inch shorter than the  factory belt to achieve proper belt tension.\u003c\/p\u003e\n\u003cp\u003eTo  simplify installation, the alternator includes a dedicated adapter  plug. One side connects directly to the alternator, while the  opposite side plugs into the factory vehicle harness, allowing for a  clean, plug-and-play electrical connection without modification to  the OEM wiring.\u003c\/p\u003e\n\u003cp\u003eFeatures  include:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n  400  \tamps of peak output for extreme electrical demand  \n  \u003c\/li\u003e\n\u003cli\u003eStrong  \tidle output and improved voltage stability under load\n  \u003c\/li\u003e\n\u003cli\u003eOverdrive  \tpulley included to enhance low-RPM performance  \n  \u003c\/li\u003e\n\u003cli\u003ePlug-and-play  \tadapter harness included for direct factory connection  \n  \u003c\/li\u003e\n\u003cli\u003eHeavy-duty  \tinternal components designed for sustained high-current operation  \n  \u003c\/li\u003e\n\u003cli\u003eDirect-fit  \tdesign for select Nissan applications  \n  \u003c\/li\u003e\n\u003cli\u003eIdeal  \tfor high-power audio systems, off-road accessories, lighting, and  \tauxiliary power needs  \n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor  Nissan owners pushing serious electrical loads, this Mechman 400-amp  alternator delivers dependable, high-output charging performance  built for both daily use and demanding environments.\u003c\/p\u003e\n\n\u003ch2\u003eFitment Table | B13900400M – Plug Code: 300\u003c\/h2\u003e\n\u003ctable class=\"table-bootstrap\"\u003e\n  \u003ctbody\u003e\n    \u003cthead class=\"thead-dark-bootstrap\"\u003e\n\t\t\u003ctr\u003e\n      \u003cth\u003eMake \/ Model\u003c\/th\u003e\n      \u003cth\u003eYear\u003c\/th\u003e\n      \u003cth\u003eEngine Size\u003c\/th\u003e\n    \u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t  \u003ctd\u003eInfiniti QX4\u003c\/td\u003e\n\t\t  \u003ctd\u003e2001-2002\u003c\/td\u003e\n\t\t  \u003ctd\u003e3.5L V6\u003c\/td\u003e\n\t  \u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t  \u003ctd\u003eNissan Maxima\u003c\/td\u003e\n\t\t  \u003ctd\u003e2004-2008\u003c\/td\u003e\n\t\t  \u003ctd\u003e3.5L V6\u003c\/td\u003e\n\t  \u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t  \u003ctd\u003eNissan Pathfinder\u003c\/td\u003e\n\t\t  \u003ctd\u003e2001-2002\u003c\/td\u003e\n\t\t  \u003ctd\u003e3.5L V6\u003c\/td\u003e\n\t  \u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t  \u003ctd\u003eNissan Quest\u003c\/td\u003e\n\t\t  \u003ctd\u003e2004-2009\u003c\/td\u003e\n\t\t  \u003ctd\u003e3.5L V6\u003c\/td\u003e\n\t  \u003c\/tr\u003e\n\t\t\u003c\/thead\u003e\n    \n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eInstallation  Notes:\u003c\/p\u003e\n\u003cp\u003eThis  unit comes equipped with a smaller 1.75-inch diameter alternator  pulley and will require a slightly shorter drive belt for proper belt  tension.  Not recommended for sustained use above 5,000 RPM  engine speed. \u003cstrong\u003eIf a  larger pulley is required\u003c\/strong\u003e,  please reach out to Mechman’s support team and we can work to get  you an underdrive pulley to meet your RPM demands. \u003c\/p\u003e\n\n","brand":"Mechman","offers":[{"title":"Default Title","offer_id":52958146134127,"sku":"B13900400M","price":649.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/0519\/9727\/files\/B11256XXXM-001_9aac37e0-5cc2-44a8-a067-cef6d0d510d5.png?v=1776275971"}],"url":"https:\/\/caraudiobargain.com\/collections\/infiniti-qx4-alternators.oembed","provider":"Car Audio Bargain","version":"1.0","type":"link"}