"> HiMSEN 5L H25/33P
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HiMSEN

5L H25/33P

The HiMSEN 5L H25/33P is a compact, five‑cylinder, medium‑speed 4‑stroke marine diesel main engine delivering up to 2 400 kW at 900 rpm, designed for flexible fuel use (MDO, MGO, LSFO) and IMO Tier II emissions compliance.

HiMSEN 5L H25/33P
2400.0 kW
Power

Engine Specifications

5
Cylinders
250 mm
Bore
330 mm
Stroke
2,400 kW
MCR Power
900.0 rpm
MCR RPM
4-stroke
Stroke Type
Family: HiMSEN (HD Hyundai) H17/28 · Tier: IMO Tier II · Fuel: MDO, MGO

Other Cylinder Configurations 33

5L H17/28
5 cyl · 1,000 kW
5L H21/32
5 cyl · 1,700 kW
5L H25/33
5 cyl · 2,300 kW
6L H17/28
6 cyl · 1,200 kW
6L H21/32
6 cyl · 2,040 kW
6L H25/33
6 cyl · 2,760 kW
6L H25/33P
6 cyl · 2,880 kW
6L H32/40
6 cyl · 3,480 kW
6L H35/40
6 cyl · 4,260 kW
6L H35/40DF
6 cyl · 4,140 kW
7L H17/28
7 cyl · 1,400 kW
7L H21/32
7 cyl · 2,380 kW
7L H25/33
7 cyl · 3,220 kW
7L H25/33P
7 cyl · 3,360 kW
7L H32/40
7 cyl · 4,060 kW
8L H17/28
8 cyl · 1,600 kW
8L H21/32
8 cyl · 2,720 kW
8L H25/33
8 cyl · 3,680 kW
8L H25/33P
8 cyl · 3,840 kW
8L H32/40
8 cyl · 4,640 kW
8L H35/40
8 cyl · 5,680 kW
8L H35/40DF
8 cyl · 5,520 kW
9L H17/28
9 cyl · 1,800 kW
9L H21/32
9 cyl · 3,060 kW
9L H25/33
9 cyl · 4,140 kW
9L H25/33P
9 cyl · 4,320 kW
9L H32/40
9 cyl · 5,220 kW
9L H35/40
9 cyl · 6,390 kW
9L H35/40DF
9 cyl · 6,210 kW
12V H32/40
12 cyl · 6,960 kW
12V H32/40V
12 cyl · 6,960 kW
16V H32/40
16 cyl · 9,280 kW
16V H32/40V
16 cyl · 9,280 kW

Components & Design

Component data being added…

Technical Data

Swept volume per cylinder 16.2 dm³
Compression ratio 17:1
Max combustion pressure 200 bar
SFOC (100% MCR) 181.0 g/kWh (diesel operation)
Oil consumption 0.6 g/kWh
6H25/33 dry weight 20.2 metric tons
7H25/33 dry weight 22.5 metric tons
8H25/33 dry weight 24.1 metric tons
6H25/33M rated output 1,440-1,596 kW (depending on RPM)
7H25/33M rated output 1,680-1,995 kW (depending on RPM)
8H25/33M rated output 2,320 kW at 900 RPM
9H25/33M rated output 2,565 kW at 900/1000 RPM; 2,700 kW max
Mean piston speed range 7.9-11.0 m/s
Mean effective pressure 22.2-27.2 bar (varies by configuration)
Emissions compliance IMO Tier II, Tier III (with SCR - Selective Catalytic Reduction)
unified from engine model True

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Common failures & inspection points

Fuel injection pump sticking and plunger immobilization caused by fuel sludge accumulation or low lubricity in low-sulphur fuels (MGO, LSFO). Drain hole/groove

Inspect fuel pump drain line connection for flow blockage during operation; verify fuel viscosity maintained at 2-14 cSt at engine inlet; check for fuel sludge deposits in drain hole and barrel groove

Excessive carbon and sludge deposits in combustion chamber, exhaust gas ways, and turbocharger when operating on low-sulphur fuels without proper lubricating oi

Inspect turbocharger for deposit buildup on turbine blades; examine exhaust valve surfaces and combustion chamber for carbon deposits; verify L.O (lubricating oil) specification matches fuel sulphur content per manufacturer list

Piston ring wear and bearing wear during scheduled overhauls at 16,000 hours (marine auxiliary) or 12,000 hours (stationary). Main bearing studs carry high load

Monitor piston ring clearance and condition; inspect main bearing cap studs for looseness after each overhaul; verify hydraulic tightening force applied to underslung crankshaft support studs

Fuel viscosity instability and pump wear risk when operating with Marine Gas Oil (MGO) at low ambient temperatures. Viscosity can fall below 2 cSt minimum, caus

Verify MGO temperature maintained at ~22°C to achieve 2 cSt viscosity; check fuel heater function for cold climate operation; test actual fuel viscosity at engine inlet before commissioning

Turbocharger pressure ratio performance degradation. While new enhanced-pressure turbochargers were introduced for Tier III compliance, field history shows moni

Monitor boost pressure trending; inspect turbocharger exhaust seal condition during regular intervals; check compressor and turbine blade condition for foreign object damage; verify turbo oil supply/drain lines clear of sludge

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #38147 · ✓ still in production