The New Holland 5083677 is an authentic OEM fuel filler cap, supplied with a key for enhanced security and prevention of fuel tampering or theft. This genuine replacement part is specifically engineered to fit various New Holland TT and TD series agricultural tractors, ensuring a perfect seal and reliable performance. Constructed from durable materials, it provides a secure closure for the fuel tank, protecting against contaminants and maintaining fuel system integrity. Ideal for maintaining the original specifications and operational efficiency of your New Holland machinery.