From Cummins Onan Marine QD 7/9 kW

The Cummins Onan Marine QD 7/9 kW (Models MDKDK and MDKDL) are popular, highly compact, and ultra-quiet marine diesel generators. Designed for vessels with tight space constraints, they feature advanced electronic frequency control and sound-shielded enclosures.

Specifications

Engine Model: 3-cylinder, 4-cycle, water-cooled Kubota diesel

Displacement: 1123 cm³ (68.58 in³)

Emissions: EPA Tier 3 certified

Cooling System: Freshwater cooling with heat exchanger and coolant overflow bottle

Ignition: Electronic fuel transfer pump for priming

Fuel Consumption

Estimated consumption rates using No. 2 diesel:

1/4 Load: ~1.1 to 1.3 L/hr (0.3 to 0.4 gal/hr)

1/2 Load: ~1.5 to 1.9 L/hr (0.4 to 0.5 gal/hr)

Full Load: ~2.8 to 3.8 L/hr (0.8 to 1.0 gal/hr)

Dimensions & Weight

Length: ~823 mm (32.4 in)

Width: ~479 mm (18.9 in)

Height: ~560 mm (22.1 in)

Dry Weight: ~238 kg (525 lbs)

(Note: Exact weights and dimensions can slightly vary depending on configurations and model specifications).Key FeaturesOnan Digital Display: Provides user-friendly diagnostics and extensive engine and alternator information.Low Noise: Super-silenced enclosure reduces noise drastically (e.g., ~66 dB(A) at 1 meter for the MDKDL).Optimized Mounting System: Drastically reduces vibrationTransferring to the hull.

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