The Case IH 87494166 is a genuine OEM wire harness designed for various Case IH Farmall A series tractors, including models 90A, 100A, 110A, 120A, and 140A. This critical electrical component ensures proper power distribution and signal transmission throughout the machine's systems, maintaining optimal performance and safety. Manufactured to Case IH's rigorous standards, it provides a precise fit and durable construction for long-lasting reliability in demanding agricultural environments.