V18 engines are a rare configuration. Large V18 diesel engines have seen limited use in haul trucks, electricity generation, rail transport, and marine propulsion. There are no known automobiles that have used V18 engines.
|ALCO 18-251||12,024 cu in (197.04 l)||4,500 hp (3.36 MW)||Diesel||Originally designed and manufactured by|
American Locomotive Company; now manufactured by
Fairbanks Morse Engine.
|Caterpillar 3618||20,320 cu in (333 L)||9,655 hp (7.2 MW)||Diesel||Out of production|
|Cummins QSK78||4,735 cu in (77.59 l)||3,500 hp (2.61 MW)||Diesel||Derived from the V16 QSK60. |
Marketed by Komatsu as the SSDA18V170.
|Fairbanks Morse Colt-Pielstick PC2.5||63,510 cu in (1,040 L)||11,700 hp (8.73 MW)||Diesel||In production|
|MAN V32/44CR||39,055 cu in 643 L||14,483 hp (10.8 MW)||Diesel||In production|
|Wärtsilä 18V50DF||125,000 cu in (2,050 l)||23,530 hp (17.55 MW)||Diesel or
|Available for both marine propulsion and power generation, and used in e.g. Humboldt Bay power station.|
In 1972, the Canadian locomotive manufacturer MLW-Worthington produced the MLW M640 prototype diesel-electric locomotive powered by the ALCO 18-251 engine, however the locomotive did not reach production.