Kohler Co. C-255670 Automatic Voltage Regulator

Kohler Co. C-255670 Automatic Voltage Regulator is a genuine replacement AVR for Kohler generator systems. Described as a photo-coupled, automatic voltage regulator and identified in Kohler’s parts catalog as EA-KOH, this unit carries the C-255670 part number for precise ordering. The AVR’s primary function is to monitor the generator’s output and adjust excitation to keep AC voltage stable, helping to limit voltage swings that can affect connected equipment. By using a photo‑coupled sensing method, it integrates into Kohler’s excitation circuit to respond to load changes and generator conditions, contributing to smoother operation and reliable power delivery. As a Kohler replacement part, C-255670 is designed to fit within configurations that specify this regulator type, providing a factory-grade option for maintenance or repair of compatible Kohler gensets. This description reflects the known identifiers: Kohler, C-255670, EA-KOH, and the designation “Photo Couple AVR,” which together define the exact replacement AVR intended for the corresponding Kohler generator setup.