Engineered to endure, the Trident OP® is the next-generation engine that answers the need for higher-efficiency power in a wide range of applications. The Trident OP’s innovative design combines smart technology with an opposed-piston (OP) architecture, delivering a durable engine with increased reliability and the highest performance in its class.


50% EFFICIENCY*achieved through optimized heat transfer losses, leaner combustion, advanced timing and reduced pumping work


Simpler design with
30%fewer components than competing products

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Compliant with
TIER IV final (EPA) NOx and CO emissions

Industry-Leading Performance

The Trident OP® is the world's most fuel-efficient engine in its class. The Trident OP's simple design and fewer moving parts result in extended service intervals, reducing the cost of operation by maintaining maximum uptime. With counter-rotating crankshafts and counter-reciprocating piston assemblies, the Trident OP is inherently balanced, resulting in lower vibrations with increased reliability.

The Trident OP® has been engineered to endure the rigors of power generation — a solution that increases performance while decreasing overall costs. All supported by factory-certified technicians, regional parts distribution, and training programs.





900 RPM (60Hz)

  • Cylinder Configuration 12L
  • Cylinder Bore - mm (in) 206 (8.125)
  • Cylinder Stroke - mm (in) 254 (10.0) x 2
  • Displacement/Cylinder—L (cu in) 17.0 (1,037)
  • Mean Piston Speed—m/s (ft/s) 7.6 (25.0)
  • BMEP—bar (psi) 11.2 (162)
  • Emissions Level EPA Tier 4F
  • Lube Oil Consumption - gal./h (L/h) 0.71 (2.7)
  • First Major Service Interval - hours 40,000

1000 RPM (50Hz)

  • Cylinder Configuration 12L
  • Cylinder Bore - mm (in) 206 (8.125)
  • Cylinder Stroke - mm (in) 254 (10.0) x 2
  • Displacement/Cylinder—L (cu in) 17.0 (1,037)
  • Mean Piston Speed—m/s (ft/s) 8.5 (27.8)
  • BMEP—bar (psi) 11.2 (162)
  • Emissions Level EPA Tier 2
  • Lube Oil Consumption - gal./h (L/h) 0.79 (3.0)
  • First Major Service Interval - hours 40,000


900 RPM

  • 3,293 kWe (60 Hz)




1000 RPM

  • 3,663 kWe (50 Hz)



900 / 1000 RPM

  • Cylinders 12
  • Length mm (in) 10,281 (404.8)
  • Height mm (in) 3,266 (128.6)
  • Width mm (in) 3,133 (123.3)
  • Weight kg (lbs) 43,091 kg (95,000)


All Ratings subject to factory-approved application. Ratings are based on ISO 3046/1 and SAE J1995 standard conditions. 25°C (77°F), 100kPa (1 bar), 30% Humidity and 150m (492 ft.) Generator efficiency at 96.3% at 60 Hz and 96.4% at 50 Hz.

All information listed is preliminary and may change without prior notice.

Service intervals extended with CBM.

Mechanical efficiency, optimized for fuel consumption. Engine only.



Flexible By Design

The unique design of the Trident OP® allows for customization to a variety of environments. Well-suited for continuous, CHP, microgrid, and peaking power for industrial applications. The Trident OP is easily adapted to meet each environment’s specific needs and priorities.


Fairbanks Morse developed a preventative Extended Maintenance Plan, designed specifically for power generation customers. With service performed by our Factory-Certified Technicians using genuine OEM parts, you can rest assured your engines are in the best of hands.

Our customized agreements are created to suit your needs.



Fairbanks Morse maintains one of the largest and most experienced teams of factory-direct field service technicians in the industry. Each field service technician has comprehensive, hands-on training and certification on Fairbanks Morse engines. All service projects, large and small, are backed by factory engineering and manufacturing resources.

Our services are backed by factory-certified technicians.



We want to hear from you

Fairbanks Morse
701 White Ave.
Beloit, WI 53511
Phone +1-800-356-6955