Stamford-Style AS440 AVR E000-24403 Automatic Voltage Regulator for Brushless Generator - Used

Application: AS440 Automatic Voltage Regulator (OEM P/N E000-24403) for Stamford-type brushless AC generators — commonly used on Cummins, Onan, Perkins, FG Wilson, Olympian, and similar diesel gensets with Stamford UC/UCI/HC alternators. Provides excitation control with adjustable Volts, Stability, U/F, Over-Excitation, and Droop. Condition: Used take-off, not tested, sold as-is. Rear label identifies manufacturer as Wuxi Kerui Electric Co., Ltd (AS440-compatible unit). Board shows dust, light residue, and minor tab corrosion; components and heatsink intact. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.