Cummins marine propulsion engine N series:

Premium performance
From a series that is service-proven through millions of hours of operation in some of the
world’s most demanding applications, the NT855 has been engineered to handle higher
injection pressures, with redesigned overhead arrangement, pistons, crankshaft and camshaft.
A gear train with high contact ratio spur gears also eliminates unwanted thrust loads and
reduces noise.
In line with the rest of the NT family, wide-ranging benefits including fuel efficiency, low oil
consumption, reliable long life, high power and durability.

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