Search by number: 2008 Mercedes Benz R CLASS 3.0L Diesel Alternator ProAmp 11309 $191.00 each OPTIONS: Valeo Unit, 180 Amp, To 2/19/08 ProAmp 11308 $285.00 each OPTIONS: Bosch Unit, 220 Amp ProAmp 11306 $348.00 each OPTIONS: Valeo Unit, 180 Amp, From 2/19/08 ProAmpN 11306N $285.00 each OPTIONS: Valeo Unit, 180 Amp, From 2/19/08 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