It is a very rare layout, used almost exclusively on large medium-speed diesel engines used for power generation and marine propulsion.
MAN B&W offers V14 layout for its 32/40, 32/44CR, 48/60CR, 49/60DF, and 51/60DF engines, with outputs ranging from 7,000 to 18,200 kW (9,400 to 24,400 hp).
Between 1982 and 1987 nineteen SA-15 arctic cargo ships were built with two 14-cylinder Wärtsilä-Sulzer 14ZV40/48 engines producing 7,700 kW (10,300 hp).
[4] SEMT Pielstick, nowadays part of MAN B&W, also produced four-stroke engines with 14 cylinders in V-configuration (14PC2[5] and 14PC4[6]).
They were used for example on RFA Bayleaf, a Leaf-class support tanker of the Royal Fleet Auxiliary.