HomeCummins/OnanCummins/Onan 1.7 EGHAA

Cummins/Onan 1.7 EGHAA Generator Set

The Cummins/Onan 1.7 EGHAA is a 120 kW (1700 kVA) Gasoline standby generator set powered by a Cummins/Onan 1.7EGHAA engine. It is available at 120 V, Single-phase, 60 Hz and rated 12.5 A. It holds about 0.95 L (0.3 gal) of oil and 0.95 L (0.3 gal) of coolant, with a maximum ambient rating of 32 °C. Starting uses 1 group-12 battery at 12 V. The set measures 28×711×406 mm (1.1×28.0×16.0 in) and weighs about 77 kg (170 lb). An integrated tank holds 6 L (1.6 gal), roughly 4.4 hours of runtime.

120 kW
Standby
1.7 L
Displacement
0.95 L
Oil capacity
1
Document types

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Specifications

FuelGasoline
Frequency60.0 Hz
Standby power120 kW
Standby kVA1700
Prime power12 kW
Oil capacity0.95 L
AlternatorCummins/Onan 1.7EGHAA
Voltage options120 V
PhaseSingle
Rated current12.5 A
Power factor1-1
Circuit breaker12.5 A
Battery group12x5
Battery voltage12 V
Battery quantity1
Coolant capacity0.95 L
Max ambient32 °C
Dimensions (L×W×H)28×711×406 mm
Dry weight77 kg
Fuel tank6.0 L
Tank runtime4.4 hr

Engine

Cummins/Onan 1.7EGHAA
Oil capacity0.95 L
Coolant capacity0.9 L
Displacement1.7 L
AspirationNatural
Rated speed3600 rpm

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filterAir Filter100 hr find
Fuel filterFuel Filter100 hr find
Oil filterOil Filter100 hr find
BeltBelt500 hr find
OilEngine Oil500 hr

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.

Common questions

What is the power rating of the Cummins/Onan 1.7 EGHAA?

The Cummins/Onan 1.7 EGHAA is rated 120 kW standby (1700.0 kVA).

What engine does the Cummins/Onan 1.7 EGHAA use?

The Cummins/Onan 1.7 EGHAA is powered by the Cummins/Onan 1.7EGHAA engine.

What fuel does the Cummins/Onan 1.7 EGHAA use?

The Cummins/Onan 1.7 EGHAA runs on Gasoline.

What is the oil capacity of the Cummins/Onan 1.7 EGHAA?

The Cummins/Onan 1.7EGHAA engine in the Cummins/Onan 1.7 EGHAA has an oil capacity of 0.95 liters.

What alternator does the Cummins/Onan 1.7 EGHAA use?

The Cummins/Onan 1.7 EGHAA uses a Cummins/Onan 1.7EGHAA alternator.

Troubleshooting

7

Symptoms & remedies

SymptomCauseRemedy
FAILS TO CRANK (ELECTRIC START MODELS)Low Battery, Bad battery connection, Oil is too heavy, Load is connectedCheck battery electrolyte level and charge. Clean and tighten all battery and cable connections. Replace with lighter oil. Always disconnect load while starting.
CRANKS SLOWLY (ELECTRIC START MODELS)Choke closed, Dirty air filter, Rich fuel mixtureOpen choke. Clean or replace air filter. Contact an Onan service center.
ENGINE WONT STARTLoose or worn spark plug lead, Faulty spark plug, Dirty fuel filter or generator set at too steep of an angle, Governor out of adjustment or lean fuel mixCheck spark plug lead connection. Remove and clean or replace spark plug. Check fuel filter and generator set angle. Contact an Onan service center.
EXHAUSTING BLACK SMOKEOpen DC circuit breaker due to an overloadRemove all loads, reset circuit breaker, check for an overload or short circuit. Do not exceed generator set rated load specifications.
UNIT RUNS THEN STOPSAdd fuel. Add oil. Reduce oil level.
UNIT RUNS BUT SURGESAdd fuel. Add oil. Reduce oil level.
NO AC OUTPUT VOLTAGEOpen AC circuit breaker due to an overloadRemove all loads, re-set circuit breaker, check tools or appliances being used for defects. Do not exceed generator set rated load specifications.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

4
Part #DescriptionQtySystem
111-1802Fuel Fill1Fuel PartsGeek
M-1830-2AC Receptacle1Service part / kit PartsGeek
M-1833Oil Fill1Service part / kit PartsGeek
M-18344DC Receptacle1Service part / kit PartsGeek

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Prime100%0.92.5
Standby100%0.82.5

Available documents

Owner's manual — 981-0130 Onan EGH EGS Operator's Manual (2-1994) (Cummins/Onan)