Main Engine 4-Stroke · Main Engines (4-Stroke)
Regular maintenance and vigilance against common failures are crucial for ensuring the reliable operation of the MAN Truck & Bus SE JMNBN24.2CO2 engine. This engine, certified under EPA standards, is designed for marine propulsion applications and delivers a rated power of 588 kW at 2100 rpm, with a maximum torque of 3000 Nm. It features a turbocharged, direct injection (common rail) system with a 4-stroke compression ignition cycle, and it operates within the IMO's Category 1 for marine engines. Common issues include fuel-injection contamination, lubricating-oil degradation, cooling-system inefficiencies, charge-air restrictions, and valve-train wear. Spare parts such as fuel system components, oil filters, cooling system seals, valve train consumables, and injector-related service parts are essential for onboard maintenance. Regular inspections should cover lubricating-oil pressure, coolant temperature, exhaust temperatures, load balance, and crankcase condition. Additionally, it is important to check for any signs of leakage and to ensure that protective alarms and safety shutdown devices are functional.
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.
Review operating trends for lubricating-oil pressure, coolant temperature, exhaust temperatures, load balance, crankcase condition and abnormal vibration or noise. Inspect filters, coolers, fuel equipment, valve gear, turbocharging equipment, mounts, flexible connections and safety shutdown devices in accordance with the installed configuration. Check for fuel, oil, coolant and exhaust leakage and verify that protective alarms and shutdowns are functional. A surveyor will normally look for evidence of disciplined maintenance, clean machinery spaces, leak control, intact guards and reliable safety functions. Use the engine serial number and manufacturer documentation for all exact wear limits, adjustment values and overhaul criteria.
Useful onboard spares typically include fuel-system service items, lubricating-oil and fuel filters, cooling-system seals, belts where fitted, valve-train consumables, injector-related service parts, sensors and common gaskets or O-rings. Critical spares should be selected against the exact engine serial number, installed emissions package and vessel redundancy; refer to the manufacturer parts documentation before ordering.
Free of charge — send us your request for MAN Truck & Bus SE equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, MAN Truck & Bus SE first.
Tell us what you need for this MAN Truck & Bus SE JMNBN24.2CO2 — a part, a service call, a second opinion. Are you MAN Truck & Bus SE? Claim this brand page.
Service engineer? Write the day report for this JMNBN24.2CO2 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.