No DPF. No DOC. Kohler's New Tier 4 Generator Systems.
Our new Tier 4 generators have no filter. Well almost none, anyway. No DPF. No DOC. No expensive aftertreatment add-ons. KOHLER® generators are the simplest, most economical Tier 4 solutions available. There’s a lot to like about these new gensets—even if it is a wee bit opinionated.