GM CS130 alternator with right offset (passenger side) mount. 6 & 2 o'clock mounting holes. High 140 amp, 1 wire easy to connect. Black finish. Highest-quality neoprene-sealed bearings for long-life. Ultra-low cut-in voltage regulators keep the extra amps flowing in low idle situations. Exclusively developed high-tech rotors and stators. Built with higher copper and steel content to deliver the greatest output with the best reliability.