Caterpillar

New

Cat G3512

750 kW standby · Natural Gas · Liquid-cooled

750 kW natural gas generator. Commercial and industrial power generation.

Standby power
750 kW
Voltage options
277/480V
Frequency / Phase
60 Hz · 3-phase
Engine
Caterpillar Cat G3512
commercial-standby

Overview#

The Cat G3512 is a 750 kW natural gas generator designed for commercial and industrial standby power applications.

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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.

Estimate runtime for the Cat G3512

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

Estimate runtime on this tank

Fuel demand at 75% load

7,875,000 BTU/hr7875.0 cf/min @ 1,000 BTU/cf

On utility natural gas the runtime is generally unlimited provided the supply line and meter can deliver this BTU/hr at the engine's required inlet pressure (typically 5–14" WC residential, up to 5 psi commercial). Confirm against the OEM's published fuel-pressure spec.

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Need service or parts for the Cat G3512?

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