K19 series Cummins engine

Advanced design, reliable performance
Cylinder body: Made of high-strength alloy cast iron, with good rigidity, low vibration and low noise.
Cylinder head: Four-valve design per cylinder, optimized air/fuel mixture ratio, combustion and emissions; one cover per cylinder, easy maintenance.
Camshaft: The single camshaft design can accurately control valve and injection timing, and the optimized cam profile can reduce impact force and improve reliability and durability.
Crankshaft: An integral crankshaft made of high-strength forged steel. The induction quenching process of fillets and journals can ensure higher fatigue strength of the crankshaft.
Piston: Using aluminum alloy casting technology, the ω-shaped head and barrel-shaped skirt design can compensate for thermal expansion and contraction to ensure good fit.


Lubrication system: All moving parts are forced lubrication; the large-capacity gear pump provides pressure lubricating oil to lubricate the bearings and cool the pistons; the oil cooler, full-flow filter, and bypass filter maintain good oil condition.
Fuel system: Cummins' patented PT fuel system optimizes combustion and provides surging power; the STC distributed timing system ensures good combustion in all working conditions; it adopts a low-pressure fuel supply system and is equipped with a one-way fuel circuit, which is reliable.
Cooling system: forced water cooling by gear centrifugal water pump, large flow water channel design, good cooling effect; spin-on water filter and DCA additive can effectively prevent rust and cavitation, control coolant acidity and remove impurities.

Intake and exhaust system: Holset exhaust gas supercharger further improves combustion; pressure-type pulse exhaust pipe can make full use of exhaust gas energy and improve engine efficiency; air-to-air intercooling technology ensures fuel economy and good emissions.