CTP 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. CTP liner kits include premium pistons, piston rings, piston pin, pin retainers, liner seals and wet liners**.