Search by number: 1974 Mercedes Benz 240 2.4L Diesel Alternator ProAmp 13056 $108.00 each OPTIONS: w/Internal Reg ProAmp 13077 $112.00 each OPTIONS: w/External Reg 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