This O-ring seals is designed to perfectly fit the Cummins Engine KTA19, KTA38, and KTA50 models. These seals are an essential part of any heavy equipment, ensuring that the engine runs smoothly and efficiently. Crafted in China with the utmost attention to quality, these seals are made to last. They are the perfect choice for anyone looking to replace their old or worn out seals. Bid with confidence and upgrade your heavy equipment with these reliable seals.