The Atlas Copco QAS 200 extracts 160 kW of prime power from the same John Deere 6068HFG05 6.8-liter platform used in the QAS 150, but paired with a larger Leroy Somer LSA 44.3 VL 13 alternator to deliver 200 kVA. The shared 335-gallon fuel tank provides over 36 hours of runtime at 75% load.
At 71 dBA, the QAS 200 maintains the quiet operation Atlas Copco is known for in this class. The unit shares its platform with the QAS 150 for parts commonality, a benefit for rental fleets running multiple QAS models. DEF consumption is managed through a 25-gallon tank integrated into the unit.
The QAS 200 and QAS 150 share the same John Deere 6068HFG05 engine block, enclosure design, 335-gallon fuel tank, and 25-gallon DEF tank. The differentiation is in the alternator: the QAS 200 uses the Leroy Somer LSA 44.3 VL 13, a larger-frame alternator from the same family as the QAS 150's LSA 44.3 M6. Both deliver ±0.25% voltage regulation with AREP excitation.
For fleet operators, this platform commonality means filters, coolant, DEF, enclosure panels, and most service procedures are identical between the 150 and 200. The dual-frequency capability (50/60 Hz) is also carried over, providing flexibility for international or mixed-frequency applications.
The QAS 200 is a logical step-up from the QAS 150 for operators who need more power without changing their logistics footprint. The shared platform means technicians familiar with the QAS 150 can service the QAS 200 with minimal additional training — the engine, enclosure, and control system are identical.
Atlas Copco's after-sale service remains the brand's weakest point. Owners consistently report unreturned service calls, travel charges exceeding $311/hour, and difficulty sourcing Atlas Copco-specific enclosure and control components. The John Deere 6068 engine itself has excellent aftermarket support through John Deere's dealer network. For QAS 200 owners in Northern California, OnPoint provides local maintenance and repair service with direct experience on the QAS 150/200 platform.
Engineering specifications
Acoustic
Sound @ 7m, 75% load
71 dBA
Enclosure
Sound-attenuated
Fuel system & runtime
Integral fuel tank
335 gal
DEF tank
25 gal
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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
35.2 hours(1.5 days)
Fuel consumption ≈ 9.50 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 Atlas Copco QAS 200 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 fuel flow, hard starting, power loss
500+
minor
Starting battery
Failed start or slow cranking after extended storage
4,380+
minor
Coolant hoses
Weeping at clamp joints, low coolant warning
5,000+
minor
Frequently Asked Questions
What is the prime and standby rating of the Atlas Copco QAS 200?
The QAS 200 delivers 160 kW prime power and 176 kW standby power. It shares its John Deere 6068 engine platform and 335-gallon fuel tank with the QAS 150, making it a fleet-friendly step-up.
What engine does the Atlas Copco QAS 200 use?
The QAS 200 is powered by a John Deere 6068HFG05 6.8-liter inline-6 turbocharged-aftercooled diesel engine running at 1,800 RPM. This is the same engine as the QAS 150, paired here with the larger Leroy Somer LSA 44.3 VL 13 alternator to extract 160 kW.
What are the service intervals for the QAS 200?
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 25-gallon DEF tank requires periodic refill for Tier 4 Final SCR compliance.
Is the Atlas Copco QAS 200 EPA Tier 4 Final compliant?
Yes. The QAS 200 is EPA Tier 4 Final and CARB compliant, legal for operation throughout California. The John Deere 6068HFG05 uses DOC and SCR aftertreatment with a 25-gallon DEF tank integrated into the shared enclosure platform.
How does the QAS 200 differ from the QAS 250?
The QAS 250 steps up to the John Deere 6090HFG06 9.0-liter engine delivering 200 kW prime — 25% more than the QAS 200. The QAS 250 uses a larger 385-gallon fuel tank and transitions to the Leroy Somer LSA 46.2 alternator series. Both operate at 71-73 dBA.
What fuel does the Atlas Copco QAS 200 use?
The QAS 200 runs on diesel with DEF required for SCR aftertreatment. The 335-gallon integral fuel tank provides over 36 hours of runtime at 75% load. The 25-gallon DEF tank is shared with the QAS 150 and sized for the same runtime window.
Who services Atlas Copco generators in Northern California?
OnPoint Generators provides local service and maintenance for Atlas Copco QAS units including the John Deere 6068-powered QAS 150 and QAS 200. We serve the Bay Area and Northern California with faster response times than the Atlas Copco factory service network.
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