HomeCummins/OnanCummins/Onan DQLH

Cummins/Onan DQLH Generator Set

The Cummins/Onan DQLH is a 2750 kW (3438 kVA) Ultra-low sulphur diesel (15 ppm sulphur) standby generator set powered by a Cummins/Onan QSK78-G14 engine. It operates at 60 Hz and 3-phase. It holds about 413 L (109.1 gal) of oil and 738 L (195.0 gal) of coolant, with a maximum ambient rating of 43 °C. The set weighs about 22865 kg (50409 lb).

2750 kW
Standby
413.0 L
Oil capacity
2
Document types

How to read your Cummins/Onan serial & model number →

Specifications

FuelUltra-low sulphur diesel (15 ppm sulphur)
Frequency60.0 Hz
Standby power2750 kW
Standby kVA3438
Prime power2500 kW
EmissionsEPA Stationary non-Emergency Tier 4
ControllerPowerCommand 3.3
Oil capacity413.0 L
Phase3
Battery voltage24VDC V
Coolant capacity738 L
Max ambient43 °C
Dry weight22865 kg

Engine

Cummins/Onan QSK78-G14
Oil capacity413.0 L
AspirationTurbocharged and low temperature after-cooled
Rated speed1800 rpm

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filterDry replaceable element standard; heavy duty optional find
Fuel filterTriple element, 10 micron filtration, spin-on fuel filter with water separator find
Oil filter find
Belt find
Coolant
Oil

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 DQLH?

The Cummins/Onan DQLH is rated 2750 kW standby (3438.0 kVA).

What engine does the Cummins/Onan DQLH use?

The Cummins/Onan DQLH is powered by the Cummins/Onan QSK78-G14 engine.

What fuel does the Cummins/Onan DQLH use?

The Cummins/Onan DQLH runs on Ultra-low sulphur diesel (15 ppm sulphur).

What is the oil capacity of the Cummins/Onan DQLH?

The Cummins/Onan QSK78-G14 engine in the Cummins/Onan DQLH has an oil capacity of 413.0 liters.

Parts

5
Part #DescriptionQtySystem
0140-3963Filter, Air - Standard Duty1Air filter Amazon eBay PartsGeek
A034R952Filter, Air - Heavy Duty1Air filter Amazon eBay PartsGeek
A034R957Element, Primary - Heavy Duty1Air filter Amazon eBay PartsGeek
A034R963Secondary, Primary - Heavy Duty1Air filter Amazon eBay PartsGeek
A041X654Element, Replacement - Crankcase Breather8Service 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
Prime0%226.059.7
Prime0%364.096.1
Prime0%501.0132.5
Prime1%639.0169.0
Standby0%239.063.3
Standby0%391.0103.4
Standby0%542.0143.4
Standby1%694.0183.4

Available documents

Spec sheet — 0069812Spec sheet — Cummins-2750-DQLH QSK78 (Cummins/Onan)Spec sheet — s-1677DC 0 (Cummins/Onan)Parts manual — A045Z205 I4 202407 (Cummins/Onan)Parts manual — A061C123 I5 202407 (Cummins/Onan)