Specification Sheet
Performance you rely on.
TM
  cumminsonan.com 
©2015 Cummins Power Generation Inc. | A-1441k (8/15) 
Standard features 
 Mechanical governor adjustable from service side 
 Cummins Onan OHV engine 
 Pressurized thru flow cooling system 
 4-point mounting system with coil spring vibration 
isolators 
 Universal mounting tray with structural capability to 
support the generator set in commercial mobile 
applications 
 Integral USDA Forest Service-approved spark-arrestor 
muffler 
 Integral control box 
 Instant one-touch stop switch 
 Electronic ignition 
 Self diagnostic capability 
 Hour meter 
 Battery charging - 5 A 
 Remote disable/continuous stop 
 Start and run without AC output - engine run only 
 Enclosed muffler provides noise reduction and ease of 
installation 
 Sound-attenuated housing 
 Waterproof remote connector 
 Heavy-duty solenoid shift starter 
 Fuel filter 
 Spin-on, full-flow oil filter 
 Low oil pressure protection 
 Over/under speed protection 
 Low power factor field overcurrent protection 
 Digital voltage regulation 
 Hydraulic pump standard on some models 
 10 ft generator set output lead 
Engine details 
Model:
 Cummins Onan OHV EH65V gasoline engine 
Design:
 4-cycle, OHV, 90-degree V-twin 
Cylinders:
 2 
Bore: 
80 mm 
Stroke:
 65 mm 
Displacement:
 39.8 in
3
 (653 cm
3
) 
Compression ratio:
 8:1 
Oil capacity:
 2.0 qt (1.9 L) including filter 
Power (max):
 At 2880 r/min: - Gasoline-fueled models: 
14.0 hp – LP-fueled models: 11.6 hp 
Cooling:
 Centrifugal blower, generator set mounted for 
high effectiveness, pressurized system, vertical flow 
Cooling air volume:
 60 Hz: 500 ft
3
/min (14.2 m
3
/min) 
at 2880 r/min. Air flow includes engine, generator set and 
control cooling air flow 
Fuel system: 
Replaceable dry element air cleaner 
 Gasoline - sidedraft carburetor 
Electronic fuel pump with positive fuel shutoff (3 psi), 
maximum fuel lift 3 ft (0.9 m), Automatic choke with 
vacuum pull-off 
Combustion air volume: 60 Hz: 18.9 ft
3
/min 
(0.53 m
3
/min) at 2880 r/min 
 LPG - sidedraft mixer with demand regulator 
Combustion air volume: 60 Hz: 18.3 ft
3
/min 
(0.51 m
3
/min) at 2880 r/min 
Starting system:
 Remote, 12 V, negative ground; 
automotive type starter with steel pinion and ring gear, 
automatic start disconnect, connector for remote start 
cable, start-stop rocker switch mounted on set control 
Ignition system:
 Electronic magneto type with resistor plugs 
Lubrication:
 Full pressure positive displacement lube 
oil pump, spin-on, full-flow lube oil filter, low oil pressure 
shutdown, dipstick 
Cylinder crankcase:
 Alloy aluminum with iron cylinder 
liners cast into the block, aluminum oil base 
Cylinder head:
 Aluminum, OHV, removable 
Typical fuel consumption 
Gasoline, Gal/hr (L/hr)  No load  Half load  Full load 
7.0 HGJAE 
0.42 (1.6)  0.73 (2.8)  1.22 (4.6) 
LP Vapor, Gal/hr (L/hr) 
6.5 HGJAE 
0.52 (1.95)  0.90 (3.4)  1.5 (5.9) 
Alternator details 
Design:
 Cummins Onan, revolving field, AC, 2-pole self-
excited, two bearing design 
Insulation system and temperature rise:
 Meets 
requirements of NEMA MG-1 and CSA C22.2, Std. 100 
Motors and Generators 
Cooling:
 Direct drive centrifugal blower, cast aluminum 
housing for excellent heat transfer 
Rotor:
 Laminated electrical steel assembly press-fitted 
to shaft, balanced; heavy insulated copper wire windings; 
optimized air gap for improved waveform and motor 
starting; Class 200 magnet wire 
Stator:
 Laminated electrical steel assembly, skewed for 
improved waveform; Class 200 quadrature wire with 70% 
more insulation over comparable generator sets
Excitation:
 Capped, digital voltage regulation 
DC brushes:
 Electrographic; long life 
Bearing:
 Double-sealed pre-lubricated ball bearings 
Generator set performance 
Hydraulic pump 
 Fixed displacement gear pump, 1.8 Gal/min at 2500 psi 
 Hydraulic pump is rated with the pump idle 
 When using a non-Cummins Onan pump supplied by the 
customer, the hydraulic pump shaft seals must be capable 
of operating in a temperature environment of 225° F to 
250° F. Seal failure will result in equipment damage 
Frequency regulation 
No load/Full load   5.0%  Frequency regulation  Constant load  1.7% 
Voltage regulation 
No load/Full load  2.0%  Voltage regulation  Constant load  1.7% 




