Search by number: 2011 Mercedes Benz R350 3.0L 6 Cyl Alternator ProAmp 11445 $228.00 each OPTIONS: Bluetec 4Matic; Turbocharged; 220 Amps; DIESEL ProAmp 11306 $336.00 each OPTIONS: Bluetec 4Matic; Turbocharged; 180 Amps; DIESEL ProAmpN 11306N $280.00 each OPTIONS: Bluetec 4Matic; Turbocharged; 180 Amps; DIESEL ProAmpN 11445N $319.00 each OPTIONS: Bluetec 4Matic; Turbocharged; 220 Amps; DIESEL 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