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Mechman S Series 320-Amp Racing Alternator – Designed specifically for STS and SRX models 6-phase high-efficiency design – Requires less horsepower than conventional 3-phase alternators Massive 320-amp output capacity – Ideal for high-draw electrical systems Superior airflow for cooling – Built to handle severe conditions and extend service life Features 12 diodes and twin rectifier plates for enhanced electrical stability Mechman S Series 320-Amp Racing Alternator for Cadillac STS - SRX This listing includes: (1) Mechman 11046320 Standard Finish Alternator S Series: The S series of 6 phase alternators offers incredible output in a compact and durable package. Highly efficient, these units use less horsepower than conventional 3 phase alternators. 12 diodes, twin rectifier plates and outstanding airflow ensure long service life, even in severe conditions. These units are available for a broad range of domestic and import applications in 170, 240, or 320-amp configurations. The 240 amp model offers the best balance between peak output, and output at engine idle RPM. Installation Notes: This unit comes equipped with a smaller 1.75 inch diameter alternator pulley, and will require a slightly shorter drive belt for proper belt tension. Please be aware that in some cases with a max effort 320-amp alternator in this application there may be low to no charging at vehicle idle RPM's. If this is a concern for your application, please use a 240-amp option with a larger battery bank.
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🇺🇸 Ship from USA · On Agora since 2026
$519.00