Search by number: 1993 Jaguar XJ6 4.0L Alternator ProAmp 13524 $153.00 each OPTIONS: NDenso Unit 120 Amp ProAmpN 13524N $220.00 each OPTIONS: NDenso Unit 120 Amp 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