Origin Engines are specifically engineered for industrial use. EPA Certified industrial engines that run on gasoline, natural gas or propane. Origin manufactured industrial engines in 3.6L, 4.3L, 5.7L, 6.2L, 6.6L, 8.0L, 9.1L, 10.3L, 15.9L, 19.9L, and 23.9L platforms. With Origin Engines, you get the highly engineered industrial engines you demand, configured the way you want them, with an assurance you can build a business plan around.