Search by number: 2006 Chevrolet Full Size Pickups 4.3L 6 Cyl Alternator ProAmp 11076 $123.00 each OPTIONS: 4 Pin; Bosch type unit; 100 Amps ProAmp 8302 $155.00 each OPTIONS: 2 Pin; S6; 145 Amps ProAmp 11075 $165.00 each OPTIONS: 2 Pin Regulator Plug; Bosch unit; 150 Amps ProAmpN 8302N $172.00 each OPTIONS: 2 Pin; S6; 145 Amps ProAmpN 11075N $207.00 each OPTIONS: 2 Pin Regulator Plug; Bosch unit; 150 Amps Why is there more than one unit for my car? Look at the TECH SPECS when more than one unit is shown for your car. AMPS (ELECTRIC CAPACITY): must match you vehicle electric requirements. *** Call us if you are looking to increase your unit capacity! OE ALTERNATOR MANUFACTURER: It is recommended to match the Make of your alternator