QSL9 8.9L Diesel Engine Assembly for Cummins Excavator Applications Complete six-cylinder assembly for the QSL9, the 8.9 litre engine specified for Cummins construction and mining machinery. Published figures are 114 mm by 145 mm bore and stroke, 543 cubic inches, turbocharging with charge air cooling, high-pressure common rail, and 216 to 306 kW with 1443 to 1576 Nm. Marine builds of the same block are listed at 209 to 302 kW, and the generator version at 250 kWe prime.