Features and benefits

• Rugged dependability, high quality and innovation make Cummins Onan the leader in marine generator set design and development.
• The QD (Quiet Diesel) Series models are the first marine generator sets with self-monitoring capability and network communication.
• The optional Cummins Onan Digital Display provides user-friendly diagnostics including extensive engine and alternator information, self-diagnostic features, and text display.
• The Cummins Onan Marine Generators with advanced design and development processes use technology to lower sound and vibration. Our sound shields minimize noise and deliver better sound quality. The optimized mounting system greatly reduces vibration.
• Cummins Onan Marine Generators have the largest worldwide certified distributor/dealer support network in the industry with more than 70 years of experience.

Standard features

• Advanced digital electronic control providing extensive diagnostic capability
• Shutdown with diagnostic indicator light for: high engine coolant temperature, high exhaust temperature, low oil pressure, over speed/voltage, starter overcrank, no raw water flow, additional customer input and many more
• Start-run-stop switch with glow plug preheat and fuel pump priming modes for easy starting; run light and diagnostic indicator light
• Start function has automatic glow plug preheat providing better, cleaner starting
• Engine starter with automatic start disconnect
• Electronic governor allows the generator set to maintain isochronous frequency control and close voltage regulation to provide quality power for digital appliances and computers
• Single phase AC alternator with single or dual voltages, brushless
• Digital voltage regulator integral with control
• 12 V DC electric system with battery charging, negative ground
• Electric fuel transfer pump for priming and lift capability
• DC control console mounted with isolation and DC protective circuit breakers
• Freshwater cooling system with heat exchanger, expansion tank and coolant recovery system
• Water cooled exhaust mixing elbow
• Gear-driven raw water pump
• AC mainline circuit breaker
• Running time meter
• Air intake silencer
• Captive focalized mounting systems with vibration isolators
• Full flow lube oil filter
• Oil drain and hose extension
• Electric fuel shut-off via electronic governing actuator
• Fuel filter
• Drip pan base capable of containing all generator set fluids
• Bulk head type connections for ease of installation include fuel in, fuel out, battery, raw water inlet, wet exhaust, generator set ground (vessel bond)
• Single point lifting bracket for ease of installation
• Plug-in watertight connector for optional remote control
• Closed crankcase breather re-circulation to eliminate engine room contamination
• Coolant overflow bottle to easily maintain coolant level
• Fire extinguisher access port
• Factory load tested
• Five year limited warranty

Engine details

Design: 4-cycle, water-cooled diesel
Cylinders: 4
Bore: 98 mm (3.86 in)
Stroke: 110 mm (4.33 in)
Displacement: 3318 cm3 (202.48 in 3)
Compression ratio: 22.5:1
Lube oil capacity: 11.4 L (11 qt)
Coolant capacity: 13.7 L (14.5 qt)
Coolant flow rate: 50 Hz: 43.5 L/min (11.5 Gal/min
Raw water flow rate: 50 Hz: 49.2 L/min (13.0 Gal/min)
Starting system: Remote 3-wire, 12 V starting battery required, 95 Ah, 625 CCA; 24 V optional
Power (max): SAEJ1349
50 Hz at 1500 RPM 32.9 kW (44.7 hp)
Fuel injection pump: Denso ND-PFR4M mini
Combustion Chamber: Spherical, three vortex combustion system
Max Raw Water Lift: 1.22 m (4 ft)