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Daihatsu
6LDK-28DF
The Daihatsu 6LDK-28DF is a six‑cylinder, medium‑speed (720 rpm) trunk‑piston diesel engine delivering 2 220 kW, designed for dual‑fuel operation on LNG and HFO with built‑in IMO Tier II/III emission compliance.
2220.0 kW
Power
Engine Specifications
6
Cylinders
280 mm
Bore
390 mm
Stroke
4-stroke
Stroke Type
Components & Design
Component data being added…
Technical Data
Specific Fuel Consumption (DK-28)
178-190 g/kWh
Bore Mean Effective Pressure (Pme)
DK-26: 2.11-2.43 MPa; DK-28: 2.33-2.43 MPa
Piston Speed (720 rpm)
DK-26: 9.12 m/sec; DK-28: 9.36 m/sec
Weight (8DK-28e approx.)
46 tonnes / 9500-13500 kg depending on variant
Design Type
4-stroke, turbocharged, intercooled, direct injection
Emission Standard
IMO Tier II/III
Lubrication
Forced system with water-cooled exhaust manifold
power kw
2220
rpm
720
fuel type
LNG/HFO (Dual-Fuel)
configuration
L
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Common failures & inspection points
Connecting rod bolts hitting the frame (three-piece connecting rod models)
Ring groove wear requiring chromium plating of No. 1 and 2 ring grooves (5DK-26, 6DK-26 models); also alteration of top ring width needed
Fuel injection pump tappet adjustment screw loosening (DK-28, DK-32)
Pulse absorber degradation requiring regular renewal for reliability (DK-20, DK-26, DK-28)
Crankshaft journal wear in high-service applications; on-site grinding to 0.50 mm undersize documented as restoration method
Type-general inspection and maintenance points for this equipment category — not model-specific.
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Equipment Model #124357
· ✓ still in production