| | New Cummins 6.7 liter QSB diesel without and with “pilot injection” at idle, 1500 rpm and 2000 rpm. | Aboard the test boat, a 44-foot express cruiser hull configured for quick engine changes, the ...

The engine was developed alongside its automotive brothers: the B Series 6.7L and the off-highway QSB6.7. The variations use the same basic architecture, sharing many internal components, along ...