The 441 adds just a touch more length for 41’ headers but keeps the same heavy 4x4 incline frame and tandem 7k axle layout as the rest of the bigger 4-Series. It’s aimed at producers moving larger platforms who still want a simple, fixed-axle design without torsion or brake systems to maintain. With four adjustable brackets and a swivel dolly, the header stays put and the trailer is easy to handle in tight farmyards and field entrances.