Challenger Serafin Ag Pro's Brands Ag LeaderagrimasterbreviglierichallengerClemenscosmo-bullyfendtgleanergriptracgregoirehardiisekikangamassey fergusonmuthingnobilisilvansouthern crossStrautmanntopconTornadouniaversatile All Track Tractors Tractors Challenger MT 800 E Challenger MT 700 G4