Caterpillar · Cat D-Series GC (Diesel)

Cat D150 GC

150 kW standby / 135 kW prime · Diesel · Liquid-cooled

150 kW diesel standby generator from Cat's GC value-engineered line. C7.1 turbocharged inline-6 with simplified controls for commercial standby.

Standby power
150 kW / 135 kW prime
Voltage options
120/208V, 277/480V, 346/600V
Frequency / Phase
60 Hz · 3-phase
Engine
Caterpillar C7.1 · 7.1L
EPA / Emissions
Tier 4 Final
standbyCommercialofficeGovernmentlight-industrialProperty Mgmt
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Overview#

The Cat D150 GC is a 150-kilowatt diesel standby generator from Cat's GC value-engineered line. The C7.1 turbocharged inline-6 delivers reliable mid-range power for schools, office buildings, and light-industrial facilities that need full-building standby coverage.

150 kW covers the mid-range#

150 kW is the sweet spot for many commercial buildings — enough for full HVAC, lighting, elevators, and essential process loads. The D150 GC delivers this capacity from Cat's proven C7.1 platform with the cost efficiency of the GC package.

Our service perspective#

The D150 GC uses the same C7.1 engine we service across Cat's standard genset line. Maintenance procedures and parts are identical. The GC's simplified control system means commissioning is faster and there are fewer integration variables to troubleshoot.

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Configure your Cat D150 GC

Lock the enclosure, fuel system, transfer switch, and add-ons — we'll confirm pricing, availability, and lead time within one business day. Prefer a free-form quote? That option is still here.

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Estimate runtime for the Cat D150 GC

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

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.

Frequently Asked Questions

What is the Cat D150 GC?
The D150 GC is Cat's 150 kW value-engineered diesel generator using the C7.1 turbocharged inline-6. It fills the mid-range commercial segment where 150 kW covers full-building standby for schools, office buildings, and light-industrial facilities.
How does the D150 GC compare to the standard C7.1 genset?
Same C7.1 engine. The standard genset offers advanced paralleling, multiple prime ratings, and EMCP 4 controller options. The D150 GC is optimized for standalone standby with simplified controls and faster delivery.

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Need service or parts for the Cat D150 GC?

We service every major OEM and stock genuine parts for the most common models.

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