The Kohler ERC 12V oxygen sensor is a replacement O2 sensor for Kohler’s 2.2L engine family, specifically compatible with LSF4 and the RCL-series variants (RCLA, RCLB, RCLC). This sensor operates on a 12-volt supply and reads exhaust oxygen levels to feed back to the engine control system, enabling proper air‑fuel ratio management in ERC-equipped configurations. By delivering real-time oxygen measurements, it supports stable idle and consistent engine operation on Kohler 2.2L installations that require the ERC 12V O2 sensor for LSF4 or RCL configurations.
