A mounting system for mounting a tank to a space frame comprises a side mount configured to mount the tank to a center upper frame connection of the space frame, and a bottom mount configured to mount the tank to an elongate support member of the space frame. The bottom mount and the side mount are distinct mounts and configured to be mounted to the tank in a spaced apart relationship with respect to each other. The bottom mount and the side mount are coupled to a bottom and a rear side of the tank, respectively, and together are configured to mount the tank to the space frame.