For Buick Angkewei 2.0 LSY. Widely Compatible ：Compatible For Buick Angkewei 2.0 LSY, Cadillac XT4 (2019+) 2.0LT LSY, 2019+ (For Silverado, Sierra 2.7LT L3B), Chevrolet Silverado 2.0LT (RPO LSY) engine.Note: EN-52461-100 50T Adapter for Cadillac XT4 with 2.0LT LSY engine (2019+); only for Silverado and Sierra 2019 with 2.7LT L3B engine.