Piston ring set designed for use with M278 4.6T and 4.7T engines.Constructed from aluminum , the piston features a cylinder bore of 92.9mm and a pin bolt diameter of 24mm with a length of 56mm.Ring thicknesses are 1.2mm for the first ring, 1.5mm for the second ring, and 2.0mm for the third ring, supporting efficient combustion and reduced oil consumption.Compatible with select vehicle models from 2011 to 2019 equipped with the M278 engine.Designed to meet specifications for performance and proper fitment.Includes all necessary components for piston and ring replacement.Verify compatibility using the vehicle identification number before installation. Compatibility Note: This is a third-party replacement component.Brand and model references are included solely to indicate fitment.