Cummins QSB6.7 Engine Info & Related Engine Parts
The Cummins QSB6.7 engine is one of the most popular and versatile engines ever built by Cummins. This in-line, 6-cylinder, 4-stroke diesel engine has a displacement of 6.7L (408 in3) and is equipped with a high-pressure common rail fuel system. The engine is turbocharged and aftercooled, providing excellent performance and fuel efficiency.












