The Case IH 3402018R1 is a genuine OEM door spring designed for reliable operation in a range of Case IH agricultural tractors. This essential component helps maintain the correct tension and function of the cab door, preventing unwanted movement and ensuring a secure closure. Manufactured to original specifications, it provides durability and precise fitment for models including the Maxxum 5120, 5130, 5140, 5220, 5230, 5240, and 5250, as well as MX series tractors such as MX100, MX110, MX120, MX135, MX150, and MX170.