Why Did Cat Stop Making Truck Engines? Cat at one time had about 40% of the heavy duty Diesel on highway market, but stopped producing engines in 2010.
Considering that off road emission standards are now equal to the on road standards they didn't really dodge that bullet. All they did was gain 6 years of development time. Cat still produces a Tier 4 compliant C-15 but will not put it in anything that isn't built by them.
That vocational truck was just a cornbinder with Cat logos on it. It was probably just a yellow Maxxfarce under the hood too. Seems lately (and was told this by a Cat dealer as well) that Cat doesn't want their engines being put in other manufacturer's equipment or vehicles. They want to keep them exclusively for their own products.
Don't even say that. Their equipment is engineered to be a b#### to fix. They'd probably make you take half the truck apart to change filters.