50cc cylinder kit for Piaggio / Derbi D50B0 engine Euro 4 from Naraku. High-quality standards for all D50B Euro 3 and Euro 4 engines. The color of the cylinder is the same as that of Euro 4 models from 2018 onwards. For Euro 3 models up to 2017, a technically identical but silver-colored cylinder kit is used. Pay attention to the quality of the piston: the Naraku piston is coated with molybdenum for protection during the growth period. The Naraku kit provides a reliable alternative to the expensive original cylinder with performance matching the original. It is delivered with flanges, piston, piston rings, and small accessories. The original cylinder head can be retained. OEM number for comparison: 1A0097335.