The 15424 is a 12v generator, a new aftermarket direct replacement engineered to match the fit, form, and function of the original generator. Specifications: - Voltage: 12V Vehicle Compatibility: - Makes: Yamaha (1978-1988) - Models include: Yamaha G1 - Confirm exact fitment with your year, make, and model before ordering. Cross-Reference / Interchange Numbers: - Replaces / compatible with: 15424, 75-25-15424, 92-25-1005, GSB107-02, J10-81100-10, J10-81100-10-00. 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.