Highlander Oxygen Sensor 89465-48190 Multi-Number Compatible Replacement

Toyota Highlander and some Mitsubishi models use oxygen sensor (OEM 89465-48190); high-temperature ceramic core and corrosion-resistant stainless steel housing; durable life over 80% of original. Monitors exhaust oxygen content and sends signal to ECU to adjust air–fuel ratio; install replacement with medium difficulty; use dedicated socket and anti-seize to prevent sticking; operate in cold state to avoid thread damage; verify vehicle connector specifications before installation.