The Case-IH 84526979 is a genuine OEM wiring harness designed for optimal performance and durability in Case-IH Magnum 250, 280, 310, 340, and 380 (Tier 4B/Final) tractors. This critical component ensures secure and efficient electrical connections throughout the machine's system, maintaining proper functionality and preventing downtime. Manufactured to strict Case-IH specifications, it guarantees a precise fit and reliable operation for agricultural applications.