The LS Crossover Steam Coolant Tube 2 Port OEM is a genuine General Motors (GM) product designed for engine cooling systems in Chevrolet vehicles. This specific coolant tube is compatible with models ranging from 4.8 to 6.2, specifically made for vehicles manufactured in 1999 and up. This high-quality component ensures proper cooling system function and reliability, making it a valuable addition to any car or truck in need of engine cooling accessories. These were pulled from core motors and washed and blown out to ensure they’re is no clogs or debris in them. These show normal signs of wear but nothing that will affect the performance of the part. Make sure this part is correct for your application before purchasing. There’s no warranty. Thanks for looking and have a great day.