Briggs & Stratton 205858GS Voltage Regulator Assembly

The 205858GS is an automatic voltage regulator (AVR) printed circuit board assembly designed for single-board generator control systems. It maintains stable AC output voltage by controlling field excitation current in brushless alternators. The module integrates voltage sensing, regulation logic, and driver circuitry on a conformal-coated PCB for environmental resistance. Engineered as direct replacement for Briggs & Stratton part numbers 189769GS, 195011GS, 194390GS, 196070GS, and 200962GS. Compatible with Generac, Troy-Bilt, Craftsman, and Briggs & Stratton branded portable generators ranging from 5500 to 10000 watts. Operates on 12V DC excitation supply with typical regulation accuracy of ±2% under varying load conditions.