The Cummins QSB 6.7: Powering the Beneteau Swift Trawler 34, Sabre 38, Backcove 37, Prestige 420, and Dozens More
The Cummins QSB 6.7 is one of the most widely installed marine diesels of the last fifteen years. It shows up in trawlers, express cruisers, sportfishers, and pilot house boats…










