Whether you are mining copper in the Andes or oil sand in Alberta, the Cummins QSK78 Tier 4 Final engine provides the optimal combination of productivity and performance in the world's largest class of haul trucks. Its 3500-horsepower (2610 kW) V18 configuration incorporates improved features from our QSK 78 Tier 2 engine, including advanced combustion technology, simplified serviceability of the thermostat and cooling circuit, double oil filter and lube oil life resulting from cleaner combustion and added improvements, as well as a 10% increase in fuel burn to overhaul.

The QSK78 is available for Rail and Mining applications

Cummins L mechanical engines are built to deliver heavy-duty performance in every piece of machinery. The L8.9 engine has established an unrivalled reputation for reliability, incorporating features designed to maximise engine integration within OEM installation. The L8.9 features indirect fuel injection, resulting in cleaner, quieter and more fuel-efficient performance. With a highly compact 6-cylinder envelope and extremely low heat rejection, the engine offers a high degree of installation flexibility.