Search by number: 2011 Ford E-150 4.6L 8 Cyl Alternator ProAmp 11274 $143.00 each OPTIONS: Mitsubishi type unit 120 Amps 6 Groove Serpentine Belt ProAmp 11432 $170.00 each OPTIONS: Standard 155 Amp Denso Alt ProAmp 11534 $256.00 each OPTIONS: Optional 225 Amp Denso Alt ProAmp A3TG5591 Call for Price OPTIONS: OEM Mitsubishi Unit 120 Amps 6 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