The John Deere PF12171 is an original equipment manufacturer (OEM) bearing and housing assembly designed specifically for ATU (AutoTrac Universal) steering motors. This critical component ensures the smooth and reliable operation of the steering motor, maintaining optimal performance and precision in John Deere agricultural machinery equipped with ATU systems. Manufactured to John Deere's rigorous standards, the PF12171 provides durability and a perfect fit for compatible models, ensuring long-lasting functionality across various John Deere 6R, 7R, 8R, and 9R/9RX series tractors.