6pcs Pistons & Rings Set for M272 E25 and M272 E30 Engines compatible with various models including E-Class W212 and W211.This set includes pistons and rings designed to fit the M272 2.5L and 3.0L V6 DOHC engines.The set is intended for use in engine rebuilds and replacements. Specifications: - Standard size 0.00 with no cylinder expansion required - Cylinder bore diameter: Φ88mm - Bolt diameter: Φ22mm - Bolt length: 48mm - Ring thickness: 1.5mm / 1.8mm / 2.5mm Part numbers included: 2720304017, 2720301018, 2720300117, 2720303717 Package includes one complete set of 6 pistons and rings. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.