The Cummins V903 engines were developed for automotive and construction market requirements of lightweight, compact diesel engines in the 280–320 hp range. The engine design and development objectives were to obtain relatively high reliability and durability combined with good thermal efficiency in a compact package size. These objectives were achieved by careful attention to design details, combustion system development and extensive laboratory and field evaluations.
Cummins V903 Engine
Butler, J., "Cummins V903 Engine," SAE Technical Paper 690219, 1969, doi:10.4271/690219.