Caterpillar Cylinder Kit, CK390UF

replaces: CK390UF
Includes piston 1521390, Rings and Liner (semi finished)
Our liner & piston kits are assembled from the highest quality components. Our wet liners have a proprietary oxide coating to reduce cavitation, a roll burnished radius to prevent flange fractures and precise cross hatch bore finish for proper ring seating. Liners receive heat treatment to ensure strength and durability.