A seed tank assembly for an agricultural implement including a support rod with a first end and a second end, in which the first end is configured to couple to a first side of an opening in a seed tank, the second end is configured to couple to a second side of the opening in the seed tank, and the support rod includes a trough. The support rod is configured to provide structural support to the seed tank. The seed tank assembly further including a prop rod with a first end and a second end, in which the first end is slidably coupled to the support rod, the second end is configured to attach to a tank lid, the tank lid is configured to rotate from a closed position to a fully open position, and the tank lid forms an obtuse angle with the opening while in the fully open position. The trough is configured to block movement of the first end of the prop rod while the first end of the prop rod is engaged with the trough to hold the tank lid in the fully open position.
