Sievers Equipment Company Your Southern & Central Illinois ag, construction and residential equipment dealer. We also offer parts and service to maximize productivity and reduce downtime. Sievers Equipment Co. is your Southern & Central Illinois ag dealer for quality Case IH Tractors, Axial Flow Combines, and everything in between. We are also proud to serve Metro St. Louis and the St. Charles river bottoms. Whether you are looking for a Case IH Quadtrac or Magnum, or are interested in AFS Precision Farming products, Sievers Equipment Co. has the equipment you need to maximize productivity and reduce downtime.