S Series "one-wire" 320 Amp Alternator with 6.15" Bolt Pattern - POLISHED w/ March Pulley
The S series of 6 phase alternators offers incredible low RPM 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. This 320 amp high output unit is specially designed to replace CS130 alternators with 6.15 inch center-to-center distance bolt patterns, as used by several aftermarket accessory drive manufacturers. This unit includes a specially machined March performance 6 groove serpentine pulley, fan, and decorative cover already custom fitted to the alternator, and features a simple one-wire hookup. The 1.75 inch diameter pulley 140+ amps as just 800 engine idle RPM with a 7" crankshaft pulley. Due to the high pulley ratio necessary for good charging at engine idle RPM, this unit is not recommended for use over 5,000 engine RPM.
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