1014495 Piston Body Fits Caterpillar ModelsOne New Aftermarket Replacement Piston Body for Caterpillar (Cat) 3116 Engine This aftermarket replacement piston body fits the Caterpillar 3116 inline 6 turbocharged diesel engine. The 3116 is a 6 cylinder engine with a 105mm bore and 127mm stroke, used across a wide range of Caterpillar (Cat) construction, agricultural, forestry, and marine equipment. The piston body is a core internal engine component and is commonly replaced during engine overhaul