The 13881 is a 12v 136 amp alternator, a new aftermarket direct replacement engineered to match the fit, form, and function of the original alternator. Specifications: - Voltage: 12V - Output: 136 amp - Rotation: Clockwise (CW) Vehicle Compatibility: - Makes: AGH, Dodge (1999-2000) - Models include: Dodge Ram 2500; Dodge Ram 3500; AGH Quantum - Confirm exact fitment with your year, make, and model before ordering. Cross-Reference / Interchange Numbers: - Replaces / compatible with: 0-124-525-005, 11314, 13-9129, 13-9750, 13766N, 13881, 1N8637, 213-8637, 213-9129, 213-9750 (plus 6 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.