This aftermarket replacement steering knuckle, identified by part number 3405611R1, is a high-quality, non-OEM alternative designed for various Case IH agricultural tractors. Specifically engineered for the left side of the vehicle, this robust component features dimensions of 308x40mm, ensuring a precise and secure fit within your equipment's steering assembly. The steering knuckle is a critical part of the front axle, enabling the wheel to pivot and facilitating smooth, responsive steering control. This compatible part is an excellent solution for replacing worn, damaged, or broken original steering knuckles on models such as the Case IH Maxxum 5120, 5130, 5140, 5150, MX100, MX110, MX120, and MX135. By choosing this aftermarket steering knuckle, you benefit from a durable and reliable component that helps restore optimal maneuverability and safety to your tractor. It offers a cost-effective repair solution without compromising on performance. Always verify the part number and specifications against your equipment's requirements to ensure correct fitment and function.