XSP312

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Harness for XSP 310/320 Digital Voltage Controllers Compatible With GM “SI” Alternators - 1969 to 1988 Use this harness as the custom link between the XS Power XSP310 or XSP320 Vol tage Controller, and your alternator. Install the Voltage Controller to adjust alternator output on demand for more current to your battery bank, faster battery recovery time and an extra boost of power when you need it! Harness for GM SI” Series Alternators (1969 to 1988) Show more