The 13900 is a 12v 110 amp alternator, a new aftermarket direct replacement engineered to match the fit, form, and function of the original alternator. Specifications: - Voltage: 12V - Output: 110 amp - Rotation: Clockwise (CW) Vehicle Compatibility: - Makes: Infiniti, Nissan (2001-2008) - Models include: Infiniti G35; Infiniti FX35; Nissan 350Z; Nissan Pathfinder; Infiniti QX4 - Confirm exact fitment with your year, make, and model before ordering. Cross-Reference / Interchange Numbers: - Replaces / compatible with: 11051, 11052, 13-9524, 13-9548, 13-9563, 13900, 13900R, 1N9524, 210-3150, 210-4207 (plus 29 more on file). Why ePartsGlobal: specialist in heavy-duty starters, alternators, and charging-system electrical parts. Backed by a 1-year warranty, free shipping on orders over $19.95, and fast fulfillment. Ships from USA.