The JCB 02634101 is a genuine standard (STD) piston specifically designed for JCB 444 series engines. This high-quality replacement part ensures optimal engine performance and reliability. It features a precise 98.00 mm bore diameter, a 38.00 mm piston pin diameter, and an overall length of 104.00 mm. This piston is a direct fit for maintaining the integrity and efficiency of your JCB engine.