This liner insert is a high-quality unit that is designed to fit perfectly into Cummins Engine models KTA19, KTA38, KTA50, and NT855. It is manufactured in China by a reputable company, and it is suitable for use in commercial truck parts. The unit type is a liner insert, and the manufacturer part number is 3011884. The liner insert is sold as a single unit, and it is ideal for anyone looking to replace or upgrade their current liner insert. With a unit quantity of one, this item is a great choice for those who need to keep their engines running smoothly.