6L45 6L80 GA6L45R RWD Transmission Control Unit with Valve Body Mechatronics TCU fit for BMW E81 E93 fit for Cadillac fit for Chevrolet. OEM NO. : 6L45 6L80 GA6L45R. Optimized Performance:Enhances your vehicle's transmission with , delivering smooth and efficient shifts. Developed with extreme care, the transmission solenoid valve guarantees accurate hydraulic control, facilitating seamless gear shifts for an uninterrupted ride. Constructed using premium parts and advanced electromagnetic tech, the solenoid is engineered to endure harsh temperature fluctuations and continuous use, offering reliable durability over time., Manufacturer: HAYSXVR