KS Large Bore Pistons (KSLP) is known as one of the world’s leading designers and manufacturers of large bore pistons. KSLP large bore pistons are used in large, medium-speed diesel and gas engines with bores (cylinder diameters) ranging from 130-400 mm made of aluminum, spheroidal graphite iron or steel as well as combinations of these materials for all customer applications. Our large bore pistons are designed to power ships, locomotives, and stationary power plants sustainably and efficiently.