This is a very popular replacement where increased capacity is needed. This kit is more popular for (electrically) modified cars.
60 amps at idle (2000 alternator shaft rpm) 120 amps maximum (6000 alternator shaft rpm) the stock belt can be used on original equipment vehicles. All units are 100% NEW and come complete with internal voltage regulator and 1V single-groove pulley, each is tested at time of assembly. On vehicles where this is an upgrade we require that you upgrade the main power wire due to higher output than stock
Applications: 1965-1978 Mustang V-8.
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Added amp and subwoofer to 1970 mustang Mach 1, which started causing electrical issues. Battery would not charge and motor started to stumble. Voltage at battery showed12.4 volts. Changed to pa performance alternator and now no stumbling and voltage at battery is 14.1. Good product with good results.