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The NGK OE‑type 4‑wire air/fuel sensor for 2020 Toyota Highlander is an OE‑style direct replacement that restores accurate air–fuel ratio sensing to the engine control system. With the factory four‑wire configuration and standard mounting, it supplies the feedback required for fuel‑trim and emissions monitoring and installs in the original sensor location for straightforward service.
NGK 2020 Toyota Highlander OE Type 4-Wire A/F Sensor
