Auxiliary Engine (Generator Set) · Auxiliary Engines
This is a marine diesel engine designed for auxiliary power applications. The Crowley Maritime 6L23/30H boasts a power output of 1050 kW at 900 RPM, driven by a 6-cylinder, 4-stroke compression ignition engine with a displacement of 71.6 liters. This engine is EPA certified under the ECWLN71.6001 engine family and meets IMO Engine Category 2 standards. The 6L23/30H features direct fuel injection, a mechanical pump-line-nozzle system, and turbocharging for optimal performance. It delivers a maximum torque of 11142 Nm during its designated duty cycle: a 5-Mode Constant Speed Auxiliary Cycle (D2). To ensure reliable operation, Crowley Maritime recommends carrying a comprehensive inventory of spare parts, including fuel and lubricating oil filters, air filter elements, injector spares, seals, gaskets, pump service kits, and starting system components. Regular service inspections should encompass starting reliability, load acceptance, speed stability, exhaust temperatures, oil pressure, cooling temperatures, vibration analysis, and a thorough check of all fuel, oil, cooling-water, and exhaust systems.
Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.
What our service work and the manufacturer documentation say about keeping this model running.
Check starting reliability, load acceptance, speed stability and the engine's ability to carry its assigned electrical or mechanical load. Trend exhaust temperatures, oil pressure, cooling temperatures and abnormal vibration and compare cylinders or operating points for imbalance. Inspect fuel, oil, cooling-water and exhaust systems for leakage and verify filters, coolers, pumps and ventilation are in serviceable condition. For generator sets, verify governor response, load sharing, generator protection, emergency shutdowns and automatic-start functions where fitted. Inspect foundations, flexible mounts or couplings and the interface with the alternator or driven machine. For cylinder dimensions, rotational speed, pressures, clearances, temperatures, wear limits and setting values, refer to the manufacturer documentation for the exact figure.
Keep fuel and lubricating-oil filters, air-filter elements where fitted, injector-related spares, seals and gaskets, pump service kits and starting-system components on board. For generator duties, carry selected governor or speed-control components, sensors, relays and common electrical interface spares according to the installed control system. The final spare inventory should follow manufacturer recommendations, class requirements and the number of redundant generator or auxiliary sets available.
Free of charge — send us your request for Crowley Maritime equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, Crowley Maritime first.
Tell us what you need for this Crowley Maritime 6L23/30H — a part, a service call, a second opinion. Are you Crowley Maritime? Claim this brand page.
Service engineer? Write the day report for this 6L23/30H in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.
Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.