The Case IH part number CAA77313 is a genuine OEM key set specifically designed for various Case IH Farmall C and A Series tractors. This key set provides a direct replacement for original ignition keys, crucial for maintaining the security and operational functionality of your agricultural machinery. It is an essential component for models including Farmall 100C, 110C, 120C, 50A, 55C, 60A, 65C, 70A, 75C, 80A, 85C, 90A, and 95C.