Tier 4 is comming... now is the time to get off the fence!

[MessickFarmEqu]

When will this affect diesel zero turn mowers? The Ferris 5100, comes to mind.

Its hard to say because of the way the engine credits system works. For the most part, within the next 12-24 months everything should be changed over. My guess is that most diesel ZTR's will max out at 25.9 HP where they can get away without most of the crazy expensive stuff, if a larger model continues to be offered it will be 3k+ more expensive for a few engine HP.