The 13721 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: Chevrolet (1997-2002) - Models include: Chevrolet Corvette - Confirm exact fitment with your year, make, and model before ordering. Cross-Reference / Interchange Numbers: - Replaces / compatible with: 10246634, 13721, 13968HP-240A, 1N9125, 213-9125, 2541926, 334-1280, 36-13721, 439217, 541926 (plus 3 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.