The QAS 45 generator has an Isuzu 4LE2X diesl that achieves Tier 4-Final with a DOC.
Kohler has expanded its mobile generator product line with the addition of a fourth model that is able to run on propane—the 30REZGT.
Subaru Industrial Power Products has upgraded its line of commercial-grade SGX generators with a larger fuel tank, no-flat tires and larger mufflers.
The NG160, NG225 and NG295 generators are powered by natural gas and have an automatic dual-fuel switch
Two propane-powered mobile generators, the 50-kVA 50REZGT and 70-kVA 70REZGT, use naturally aspirated engines.