In-line 6-cylinder engine with a displacement of 8.3 litres and with outputs of 150 to 310 hp(112to231 kW). The advanced C series engine uses a modern unitary construction for ease of maintenance and repairability. Heavy-duty components include a massively strong steel crank with hardened fillets and large bearing areas for strength and durability. The latest C series power ratings are 224 kW (300 bhp) and 261 kW (350 bhp).