The 8254 is a 12v 105 amp alternator, a new aftermarket direct replacement engineered to match the fit, form, and function of the original alternator. Specifications: - Voltage: 12V - Output: 105 amp Vehicle Compatibility: - Makes: Mercury (2001-2002) - Models include: Mercury Cougar - Confirm exact fitment with your year, make, and model before ordering. Cross-Reference / Interchange Numbers: - Replaces / compatible with: 13-3105H, 13-3166, 1N3105H, 1N3166, 210-5372, 334-2498, 335-1211, 8254, 90-02-5131, 90-02-5131N (plus 15 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.