General description These 2PCS Car Tail Light LED Modules are designed as a direct replacement for Cadillac ATS and XTS models from 2013 to 2018. They are made of high-quality materials, ensuring durability and long service life. With stable performance and high reliability, these modules are flexible and easy to use, making them a perfect replacement for your old tail light control units. Technical specifications Type: Tail Light Bulb LED Unit Module Placement on Vehicle: Rear Left or Right Side Part Numbers: 13579168, 84198978 Material: Metal + Plastic Color: Silver Condition: Brand New Package Contents: 2 x Rear Tail Light Control Module Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with Cadillac ATS 3.6L (2013-2018) Compatible with Cadillac XTS (2013-2018)