The Doosan G240 delivers 190 kW of prime power (240 kVA) from a Cummins QSB7-G9 6.7-liter engine — stepping up from the G190 with a higher-output variant of the same proven Cummins platform. The 368-gallon integral tank provides approximately 27 hours of runtime at full load.
At 69 dBA, the G240 uses the DualBox enclosure with separated powertrain and cooling compartments. The Cummins engine ensures wide parts availability and familiar serviceability for rental fleet operators.
The G240 shares the exact same DualBox enclosure and QSB7 6.7-liter engine platform as the G190. The QSB7-G9 variant extracts 30% more power through higher boost and fueling, delivering 190 kW prime (240 kVA) from the same displacement. For fleet operators running both models, this means common filters, common service procedures, and identical enclosure dimensions.
At 13.5 gal/hr full-load fuel consumption, the 368-gallon tank provides 27 hours of continuous operation — shorter than the G190's 31.7-hour runtime due to the higher fuel burn, but still well above a full 24-hour day. For applications that require more than one day of uninterrupted power, the G240 can accept external fuel connections.
OnPoint services Doosan G240 units alongside G190s in Northern California — the shared QSB7 platform and DualBox enclosure mean identical service procedures for both models. The G240 is the most popular Doosan model we see in rental fleets at the 200+ kVA class, largely because the Cummins QSB7 is the same engine used across multiple generator brands, which simplifies parts stocking and technician training. The 500-hour oil change interval keeps maintenance costs predictable. For fleet operators deciding between the G190 and G240, the decision comes down to load sizing — there is no penalty in weight or footprint for choosing the higher-output model.
Tell us about the application — kW, voltage, application, install timeline — and we'll respond within one business day with budgetary pricing, lead time, and any sizing notes.
Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.
Estimate runtime on this tank
Estimated runtime
35.3 hours(1.5 days)
Fuel consumption ≈ 10.41 GPH at 75% load. Estimate based on industry-typical 1800 RPM standby curves (≈0.07 GPH/kW at full load). Actual consumption varies by engine, ambient temperature, fuel quality, and tuning.
Service intervals
Manufacturer-recommended intervals for the Doosan G240 under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.
Oil & filter
Every 500 hours or 12 months
Air filter
Every 500 hours
Fuel filter
Every 500 hours
Major overhaul
≈ 20,000 hours
Common failure modes
What we've seen fail on this platform. Use as a service-planning reference, not a diagnostic — actual failure modes depend heavily on duty cycle and maintenance history.
Component
Symptom
Typical hours
Severity
Fuel filter
Restricted flow, hard starting, power loss under load
500+
minor
Battery
Failed to start or slow cranking after extended storage
4,380+
minor
Coolant hoses
Weeping at clamp connections, slow coolant loss
5,000+
minor
DPF regeneration
Incomplete regen at sustained light loads, power derate warning
2,000+
moderate
Frequently Asked Questions
What is the standby power rating of the Doosan G240?
The Doosan G240 delivers 200 kW standby and 188 kW prime power. It shares the same DualBox enclosure and Cummins QSB7 engine platform as the G190, providing a 30% power increase in the same footprint. Also sold as the Bobcat PG240.
What engine does the Doosan G240 use?
The G240 is powered by a Cummins QSB7-G9 6.7-liter inline-6 turbocharged diesel engine running at 1,800 RPM — the higher-output variant of the QSB7 used in the G190. Both share the same 6.7-liter platform with identical dimensions and service procedures.
What are the service intervals for the Doosan G240?
Oil changes are due every 500 hours or 12 months, whichever comes first. Air filter and fuel filter replacement intervals are 500 hours. Major engine overhaul is specified at 20,000 hours. The G240 shares all service items with the G190, simplifying fleet maintenance for operators running both models.
Is the Doosan G240 EPA compliant?
Yes. The G240 is EPA Tier 4 Final compliant. The Cummins QSB7-G9 meets current U.S. emissions requirements. Like the G190, the G240 includes a DPF in its aftertreatment system — maintain adequate load to support proper regeneration cycles.
How does Doosan compare to MQ Power at the 240 kVA class?
Both operate in the 200-240 kVA class with Cummins engines. The G240 typically prices 15-30% below MQ Power while offering a larger 368-gallon integral fuel tank and the DualBox split-compartment enclosure design for improved thermal management and service access.
What control panel does the Doosan G240 use?
The G240 uses Doosan's digital control panel with auto-start, fault monitoring, voltage/frequency display, runtime tracking, and DPF aftertreatment monitoring. The DualBox enclosure provides separated compartment access for engine and cooling system service.
Who services Doosan generators in Northern California?
OnPoint Generators services Cummins QSB7-powered Doosan generators across the Bay Area and Northern California. The G240 is the most common Doosan model we see in rental fleets at the 200+ kVA class. QSB7 parts availability through Bay Area Cummins distributors is excellent.
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