5S80ME-C9.5
The Hyundai 5S80ME-C9.5 is a five‑cylinder, low‑speed two‑stroke marine diesel engine delivering roughly 9.5 MW at 78 rpm, featuring MAN‑licensed electronic ME‑C control for optimized fuel use and emissions.
Engine Specifications
Inspector Detail
✓ verified
▸
Common issues
- Excessive cylinder liner wear due to low lubrication oil quality
- Fuel pump leakage and malfunction due to worn-out or damaged components
- Scavenge air system blockages causing reduced engine performance
- Main bearing wear and overheating due to inadequate maintenance
- Crankpin bearing damage from misaligned or loose connecting rods
- Turbocharger fouling and reduced efficiency from poor exhaust gas quality
- Electronic control system malfunctions and sensor calibration issues
Inspection checklist
- Cylinder head and valve condition
- Piston ring and cylinder liner wear
- Main and crankpin bearing condition
- Fuel pump and injector performance
- Scavenge air system and turbocharger condition
- Lubrication oil quality and system performance
- Cooling system condition and temperature monitoring
- Electronic control system and sensor functionality
- Exhaust gas system and emissions monitoring
Service intervals
| oil_change | 1000-1500 hours |
| fuel_filter_replacement | 500-1000 hours |
| air_filter_replacement | 1000-2000 hours |
| cylinder_liner_overhaul | 12000-18000 hours |
| main_bearing_overhaul | 20000-30000 hours |
Typical wear limits
| cylinder_liner | 0.5-1.0 mm wear limit |
| piston_ring | 0.2-0.5 mm wear limit |
| main_bearing | 0.1-0.3 mm wear limit |
| crankpin_bearing | 0.1-0.3 mm wear limit |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Critical spares
- Cylinder liners and piston rings
- Main and crankpin bearings
- Fuel pumps and injectors
- Turbocharger components
- Electronic control system components and sensors
- Lubrication oil pumps and filters
- Scavenge air system components
Safety
- Risk of explosion from fuel or oil leaks
- Injury from moving parts or hot surfaces
- Asphyxiation from inadequate ventilation
- Fire risk from electrical or hot surface ignition
Class survey
Class surveyor typically checks for compliance with classification society rules and regulations, including engine performance, safety equipment, and pollution prevention measures
Components & Design
Component data being added…
Technical Data
🤖 Ask about this model
One free question — answered like a marine engineer. No account needed.
Suppliers & Spare Parts
Direct links to manufacturer, datasheet, spare-parts portal and dealers — request access below.
📄 Request sourcing links & documentsCases, daily reports, timesheets and AI troubleshooting in the OceanSphere Marine app — free for 14 days.
Start free trial →Find manufacturers, repair shops and spare-part dealers in the Maritime Network — our global company directory.
Maritime Network →