Excavator Piston Kit C6.4 320D Engine Parts F40100 324-4235 178-6543 094-7134 Describe: Restore your heavy machinery's true power with our premium-grade C6.4 Engine Piston Kit . Engineered to exact OEM specifications, this kit is specifically designed for 320D and 323D series excavators . It features a 102mm standard bore (STD) design, utilizing advanced thermal-resistant aluminum alloy to ensure maximum combustion efficiency, reduced blow-by, and an extended engine service