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WinGD

5X52-B

WIN-GD X-series. Next generation of Wartsila 2-stroke engines with optimized common rail and intelligent control (WiDE).

WinGD 5X52-B
9950.0 kW
Power

Engine Specifications

5
Cylinders
520 mm
Bore
2315 mm
Stroke
9,950 kW
MCR Power
118.0 rpm
MCR RPM
2-stroke
Stroke Type
Family: WIN-GD X · Tier: IMO Tier II · Fuel: HFO, VLSFO, MDO

Other Cylinder Configurations 50

5X35
5 cyl · 4,450 kW
5X35-B
5 cyl · 4,700 kW
5X40
5 cyl · 5,600 kW
5X40-B
5 cyl · 5,900 kW
5X52
5 cyl · 9,400 kW
5X62
5 cyl · 13,400 kW
5X62-B
5 cyl · 14,150 kW
5X72
5 cyl · 18,300 kW
5X72-B
5 cyl · 19,350 kW
5X82
5 cyl · 24,250 kW
5X82-B
5 cyl · 25,600 kW
5X92
5 cyl · 31,950 kW
5X92-B
5 cyl · 33,700 kW
6X35
6 cyl · 5,340 kW
6X35-B
6 cyl · 5,640 kW
6X40
6 cyl · 6,720 kW
6X40-B
6 cyl · 7,080 kW
6X52
6 cyl · 11,280 kW
6X52-B
6 cyl · 11,940 kW
6X62
6 cyl · 16,080 kW
6X62-B
6 cyl · 16,980 kW
6X72
6 cyl · 21,960 kW
6X72-B
6 cyl · 23,220 kW
6X82
6 cyl · 32,280 kW
6X82-B
6 cyl · 30,720 kW
6X92
6 cyl · 38,340 kW
6X92-B
6 cyl · 40,440 kW
7X35
7 cyl · 6,230 kW
7X35-B
7 cyl · 6,580 kW
7X40
7 cyl · 7,840 kW
7X40-B
7 cyl · 8,260 kW
7X52
7 cyl · 13,160 kW
7X52-B
7 cyl · 13,930 kW
7X62
7 cyl · 18,760 kW
7X62-B
7 cyl · 19,810 kW
7X72
7 cyl · 25,620 kW
7X72-B
7 cyl · 27,090 kW
7X82
7 cyl · 33,950 kW
7X82-B
7 cyl · 35,840 kW
7X92
7 cyl · 44,730 kW
7X92-B
7 cyl · 47,180 kW
8X35
8 cyl · 7,120 kW
8X35-B
8 cyl · 7,520 kW
8X40
8 cyl · 8,960 kW
8X40-B
8 cyl · 9,440 kW
8X52
8 cyl · 15,040 kW
8X52-B
8 cyl · 15,920 kW
8X62
8 cyl · 21,440 kW
8X62-B
8 cyl · 22,640 kW
8X72
8 cyl · 29,280 kW

Components & Design

Component data being added…

Technical Data

Stroke/Bore Ratio 4.45 (2315mm stroke), 3.93 (2045mm stroke)
Mean Effective Pressure (MEP) 21 bar (X52), 17.3 bar (X52DF)
BSFC X52 (g/kWh) 169.8 g/kWh at MCR 105 rpm (Tier II/III), 170.8 g/kWh low-load tuning
BSFC X52-S2.0 (g/kWh) 154.2-164.8 g/kWh diesel mode, up to 5 g/kWh reduction vs standard
BSFC X52DF-S2.0 (g/kWh) 140.1 g/kWh gas mode + 1.5 pilot, 181.4 g/kWh diesel mode
BSGC X52DF-A-1.0 (g/kWh) 371.5 g/kWh gas mode ammonia, 170.8 g/kWh diesel mode
Power per cylinder 1810 kW/cyl @ 105 rpm (X52), 1490 kW/cyl @ 105 rpm (X52DF), 1500 kW/cyl @ 120 rpm (X52DF-S2.0), 1910 kW/cyl @ 120 rpm (X52-S2.0)
Emissions Compliance IMO Tier II/III (SCR), iSCR integrated option available
Gas system type (DF) Low-pressure gas injection with hydraulic pilot fuel injection
unified from engine model True

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Common failures & inspection points

Gas Admission Valve (GAV) stroke sensor unreliability at sea causing unplanned diesel mode shutdown

Visual inspection of GAV sensor wiring, sensor response test at dock and sea trial, check sensor connector corrosion

wingd.com/media/3jannogh/service-ex...
Fuel gas supply pressure fluctuations under heavy sea conditions from ship-side LNG system causing engine speed oscillations

Pressure relief valve setting verification, fuel supply isolation valve function check, regulator response test under load variation

wingd.com/media/3jannogh/service-ex...
Scavenge air cooler type changes and turbocharger allocation revisions across X-engine platform requiring careful commissioning verification

Cross-check installed turbocharger serial number against commissioning document, scavenge cooler type plate vs contract specifications

wingd.com/media/osjcjdoc/mim_wingd_...
Oil starvation risk on turbocharger bearing during engine startup and low-pressure transients common in all two-stroke diesels

Check lube oil supply pressure before start, inspect turbo bearing condition at overhaul, verify pre-lubrication startup sequence in manual

www.machinery lubrication.com/Read/...

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

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Equipment Model #38722 · ✓ still in production