The 12130 is a 12v 55 amp alternator, a new aftermarket direct replacement engineered to match the fit, form, and function of the original alternator. Specifications: - Voltage: 12V - Output: 55 amp - Rotation: Clockwise (CW) Vehicle Compatibility: - Makes: Atlas Copco, Grimmerschmidt, Ingersoll Rand, Ingersoll-Rand, Sullair (1996-2010) - Models include: Ingersoll Rand G90; Atlas Copco T4W; Ingersoll Rand G80; Atlas Copco RD10+; Atlas Copco QAS 250; Ingersoll Rand 375 - Confirm exact fitment with your year, make, and model before ordering. Cross-Reference / Interchange Numbers: - Replaces / compatible with: 12130, 36-12130, 443-113-515-241, 443-113-516-241, 9-515-241, 9-516-241, 90-36-9504N, AT173624, LRA02116, RE501634 (plus 5 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.