NEW ALTERNATOR FITS JEEP COMMANDER GRAND CHEROKEE 5.7 6.1 V8 56044380AC 421000-0360 100% NEW and Made with the Highest Quality Components Available Full One Year Warranty Computer tested for consistent Quality and unsurpassed reliability Alternator - Voltage: 12V Amperage: 160 Amps Fan: Internal Regulator: External Pulley: Serpentine Grooves: 6 Source: Aftermarket