Balmar Alternator Vortec K6 Serpentine Pulley - 170A - 12V. Balmar installs high reliability bearings robust rectifier diodes and improved heat-sinking capabilities on all our alternators to ensure improved system reliability combined with increased charging power. Specifications for Balmar Alternator Vortec K6 Serpentine Pulley: Manufacturer: Balmar Color: Black Voltage: 12 volts Amperage: 170 amps Features of Balmar Alternator Vortec K6 Serpentine Pulley Vortec K6 Serpentine Pulley 170A 12V Package Contents: Balmar Alternator Vortec K6 Serpentine Pulley Balmar XT-VT-170-K6: Alternator Vortec K6 Serpentine Pulley - 170A - 12V