The McCormick 4218166M91 Heater is a genuine OEM replacement part designed for various McCormick X-series tractors, including X4, X5, X6, X7, and X8 models. This essential component ensures efficient and reliable cabin heating, providing comfort during operation. Manufactured to original specifications, it guarantees a perfect fit and optimal performance, maintaining the integrity of your tractor's climate control system. Also compatible with select Landini and Valpadana tractor models.