Toyota 32910-48160 Transmission Oil Cooler Assembly

The 32910-48160 is a transmission oil cooler assembly designed for Toyota and Lexus vehicles equipped with the 3.5L V6 engine and automatic transmission. It functions as a heat exchanger to regulate automatic transmission fluid (ATF) temperature, ensuring optimal viscosity and preventing overheating under load. Construction features an aluminum core with crossflow configuration for efficient heat dissipation. The unit integrates inlet and outlet fittings designed for hose clamp connections. It mounts in the front vehicle airflow path, typically ahead of the radiator or condenser. This assembly replaces the OEM cooler directly without modification. Application coverage includes Toyota Highlander (2014-2016) and Lexus RX350 / RX450h models utilizing the 2GR-FKS or 2GR-FXE powertrains. Verify fitment via VIN or OEM part number cross-reference prior to installation.