The Ingersoll 4016 is arguably the most popular 4000 Series machine. It is the lowest horsepower model in the 4000 series. Though a 4014 with a single cylinder Kohler Magnum made a brief appearance. The 4016 was the lowest priced 4000 so that played a big part in its popularity as it may have fit in more budgets of buyers who "HAD TO HAVE a big wheel model no matter what they had to do to find the funds. Plenty capable of any task or attachments Case Ingersoll or others brands made, the 4016 could get the job done. Like the 3000 models, the early 4000s had the big Onans in them, to begin with, and then switched to the Briggs Vanguards and the 4016 was no different as both its Onan and Briggs power plants were 16 horsepower respectably. The 4016 is an excellent choice for mowing large yards and home snow removal duties as it's a great all-around machine.