Search by number: 2012 Dodge Ram 4500 6.7L 6 Cyl Diesel Alternator ProAmp 11378 $184.00 each OPTIONS: Nippondenso type unit 145 Amps 8 Groove Serpentine Belt ProAmp 11443 $205.00 each OPTIONS: Mitsubishi type unit 180 Amps 8 Groove Serpentine Belt ProAmp 11379 $256.00 each OPTIONS: Nippondenso type unit 220 Amps 8 Groove Serpentine Belt ProAmpN 11378N $261.00 each OPTIONS: Nippondenso type unit 145 Amps 8 Groove Serpentine Belt ProAmpN 11379N $338.00 each OPTIONS: Nippondenso type unit 220 Amps 8 Groove Serpentine Belt ProAmp A3TX0381 Call for Price OPTIONS: OEM Mitsubishi Unit 180 Amps 8 Groove Serpentine Belt 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