Details

• Brand:

  

  

• SKU:

  RL1Z-8475-B

• Other Names:

  Shutter Assembly Radiator Control

• Description:

  This genuine Ford Active Grille Shutter, part number RL1Z-8475-B, is the lower radiator control shutter assembly for the 2025 Ford Expedition. It is a motorized array of louvered vanes mounted behind the lower grille opening; the powertrain and body control modules open and close the vanes based on coolant temperature, intake air temperature, vehicle speed, and cooling demand. At highway speed with light cooling load the shutters close to smooth airflow and cut aerodynamic drag for better fuel economy, and they open at low speed, during heavy towing, or when the engine and air-conditioning need maximum airflow, while also speeding engine warm-up and reducing intake noise. The assembly integrates the louvers, the electric actuator motor, and the position feedback and connector in one serviceable unit. A failed shutter commonly sets an active grille shutter fault code, sticks fully open or fully closed, and can produce a clicking or grinding noise, reduced fuel economy, slow warm-up, or elevated coolant temperature under load if it jams shut. This is the lower shutter; the upper grille shutter is a separate part number, and the vanes, motor, and frame are serviced as a complete assembly rather than individually. After replacement the system may require calibration or a learn cycle through Ford diagnostic equipment so the module relearns the open and closed end-stops. Confirm the lower position for your 2025 Expedition before ordering. Backed by the Ford parts limited warranty.

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