Olympian

Olympian GEP150

150 kW standby · Diesel · Liquid-cooled

Olympian GEP150: 150 kW diesel generator powered by the Perkins 1106A-70TAG3 engine. 7.0L inline-6 for commercial standby and industrial applications.

Standby power
150 kW
Voltage options
277/480V
Frequency / Phase
60 Hz · 3-phase
Engine
Perkins 1106A-70TAG3 · 7L

Overview#

The Olympian GEP150 is a 150 kW diesel generator powered by the Perkins 1106A-70TAG3 — a 7.0-liter turbocharged inline-6 engine from the Perkins 1100 Series. The step up from the four-cylinder 4.4-liter engines used in the GEP22 through GEP110 to the six-cylinder 7.0-liter platform provides a significant increase in both output and torque reserve, making the GEP150 suitable for commercial standby and light industrial applications with demanding load profiles.

Delivering three-phase 277/480V power at 60 Hz, the GEP150 serves mid-to-large commercial buildings, industrial facilities, healthcare clinics, and educational institutions. The 150 kW class is a common specification point for buildings with substantial HVAC systems, elevator banks, and critical IT infrastructure that require full-facility backup beyond what a 100 kW unit can support.

The Perkins 1106 inline-6 platform is widely deployed across construction, agricultural, and industrial equipment worldwide, ensuring robust parts availability through both the Caterpillar/Perkins dealer network and independent aftermarket channels. The GEP150 competes in price and capability with the Cummins C150D6 and Kohler 150REOZJF, offering Caterpillar dealer service access at Olympian's value-tier price point.

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Estimate runtime for the Olympian GEP150

Adjust load percent and tank size to estimate runtime. Pre-filled with this model's spec where available.

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Estimated runtime

24.7 hours(1.0 days)

Fuel consumption ≈ 8.10 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 Olympian GEP150 under standby duty. Field intervals may differ based on load profile, ambient conditions, and fuel quality.

Oil & filter
Every 500 hours or 12 months
Coolant change
Every 6000 hours
Air filter
Every 1000 hours
Fuel filter
Every 500 hours
Major overhaul
20,000 hours
Load bank test
Every 12 months

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.

ComponentSymptomTypical hoursSeverity
Fuel quality / degradationHard starting, filter clogging, reduced power4,380+moderate
TurbochargerPower loss, excessive smoke under load12,000+moderate
BatteryFailed to start, slow crank8,760+minor

Frequently Asked Questions

What engine powers the Olympian GEP150?
The GEP150 uses the Perkins 1106A-70TAG3, a 7.0-liter turbocharged inline-6 engine. The step up from the four-cylinder models in the GEP22 through GEP110 provides significantly more torque reserve for demanding load profiles.
How does the GEP150 compare to the Cummins C150D6?
Both are 150 kW diesel standby generators. The GEP150 uses a Perkins 7.0L inline-6 with Cat dealer service at Olympian value pricing. The C150D6 uses a Cummins QSB7 6.7L inline-6 with Cummins dealer support. Parts availability is strong for both engines. Choice typically depends on existing dealer relationships.

More in the Olympian GEP Series (Diesel)

Olympian GEP diesel generators — 15–500 kW value-tier units with Perkins engines, backed by the Caterpillar dealer network.

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