S Series 240-Amp Alternator

The Mechman S Series 240-amp alternator offers a significant upgrade for select GM vehicles, providing robust power in a compact and durable design. Utilizing a 6-phase system, this unit is highly efficient, requiring less horsepower than traditional 3-phase alternators. Its construction features 12 diodes, twin rectifier plates, and superior airflow, ensuring longevity and reliable performance even under demanding conditions. This is a computer-controlled charging system, meaning it relies on the vehicle's factory computer (ECU/PCM) to regulate charging voltage. While it delivers increased amperage for stronger performance and faster battery recharge, some voltage fluctuation is normal and does not indicate a fault. If a fixed or higher voltage is required, Mechman offers a stand-alone alternator configuration with a bypass module; contact their support team for details. Installation notes indicate that this alternator comes with a smaller 1.75-inch diameter pulley, requiring a slightly shorter drive belt for proper tension. It is crucial to note that these alternators are not compatible with external regulators. If your application requires external regulation, you must specifically request it when ordering.