6PC Piston and Ring Kit 92.9mm 22mm Direct Fit Replacement for CLK350 C350 E350 GLK350 M272 3.5L V6 Engine Part 2720308 This piston and ring kit is designed as a direct fit replacement for the M272 3.5L V6 engine.It includes six pistons and corresponding rings, with each piston measuring 92.9mm in diameter and a 22mm pin height.The kit is engineered to match specifications for performance and proper engine function.Components are built for precise fitment and durability in -performance applications.This set replaces part number 2720308 and is compatible with select vehicle models utilizing the M272 engine platform. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.