3PCS Torque Converter Lock Up Solenoid 31825AA050 FOR Lineartronic CVT TR580 Transmission Automatic This set includes three torque converter lock-up solenoids designed for vehicles equipped with CVT TR580 and TR690 transmissions.Constructed using OEM-grade components, these solenoids provide a replacement solution for transmission performance maintenance.They are engineered to fit select vehicle models with compatible transmission systems, offering a direct installation process without modifications.The solenoids enhance the efficiency of the torque converter lock-up function, contributing to improved fuel economy and smoother during driving.Each unit is built to meet specifications, consistent functionality and under normal operating conditions.Installation is straightforward, with standard tools and basic mechanical knowledge required.The package contains all necessary solenoids for a complete replacement, allowing users to refresh the transmission's valve body effectively.This product does not include the AWD solenoid, so compatibility with your specific transmission setup should be verified prior to installation.