This is an original equipment manufacturer (OEM) Fiat 5105346 reservoir cap, also cross-referenced for New Holland and Case IH applications. Designed to securely seal the fuel or hydraulic reservoir, ensuring system integrity and preventing contamination. It features an outer diameter of 60 mm, an inner diameter of 40 mm, and a height of 30 mm, with a weight of 0.05 kg. Essential for maintaining proper fluid levels and preventing leaks in compatible agricultural machinery.