G20CM34 | 10000 kW - 10500 kW Gas Generator Set

Articulated Trucks Asphalt Pavers Backhoe Loaders Cold Planers compactors DOZERS draglines

Drills Electric rope shovels excavators hydraulic mining shovels motor graders off-highway trucks pipelayers

road reclaimers skid steer and compact track loaders track Loaders underground - hard rock wheel loaders wheel tractor - scrapers

PARTS.CAT.COM Articulated trucks Dozers Backhoe Loaders Hydraulic Mining Shovels

SUSTAINABILITY ELECTRIC POWER MARINE POWER SYSTEMS INDUSTRIAL OIL AND GAS

© 2025 Caterpillar. All Rights Reserved. Cat, CATERPILLAR, LET’S DO THE WORK, their respective logos, “Caterpillar Yellow,” the “Power Edge” trade dress as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.

Power Systems / NEW / Electric Power / Gas Generator Sets / G20CM34

US

METRIC

G20CM34

G20CM34

OVERVIEW

BENEFITS

FEATURES AT A GLANCE

SPECIFICATIONS

PRODUCT BROCHURES AND DOWNLOADS

TOOLS AND EXPERT HELP

MEDIA GALLERY

KEY SPECS

Continuous Rating 9830 / 10300 ekW @ 0.8 pf
Fuel Type Natural Gas
Maximum Electrical Efficiency 48.90%

Get a quote

FIND A DEALER

OVERVIEW

BENEFITS

FEATURES AT A GLANCE

Genset Details

Spark ignited lean burn natural gas engine
Electric power output with 10300 / 9830 ekW at 50 / 60 Hz application
Medium-speed engine concept with high efficiency up to 48.9 %
Designed for open cycle, base- and peak load as well as CHP application
Wide operating ranges with excellent load following capability and high part load efficiency
Compliance with World Bank Emission Certificate according to IFC-2008 without additional exhaust gas aftertreatment
Compliance with MCPD 2015/2193/EU, IED according to 2010/75/EU, and 13th and 44th BImSchV by using SCR and oxidation catalyst

Fuel Flexibility

Capability for operation with various gas qualities
Variable configuration for natural gas with diverse methan number

Customization

Withstand the most challenging conditions and is thus offering a wide range of applications
Maximized benefits thanks to individual, tailor-made adjustments and extensions
Project-specific adjustment to fulfill challenging ambient conditions like high altitude and / or high temperature

Modular scope of supply

The Caterpillar Standard Scope of Supply ensures maximum safety, best performance and excellent service capability for your Power Plant with our Gensets. Operational reliability creates a safe working environment for your employees based on our knowledge and experience, combined with the high quality of the selected components. We enable lowest fuel consumption due to an outstanding engine design as well as highest uptime through reliable power output. If you choose the Caterpillar standard scope of supply, our experienced team is capable to support you immediately remote and on site. With our Caterpillar optional scope, you can also get a wide range of auxiliaries for your power plant, convenient and fully compatible

Gas Valve Unit

The GVU is a stand-alone auxiliary and regulates the gas supply under all required conditions for engine operation. It is designed for natural gas operation and is therefore equipped with special safety devices. Within the GVU, the incoming natural gas is separated into ignition and main gas. Special sensors and valves enable the pressure and leakage detection to shut-off both lines. The equipment of the gas valve unit shown in the picture above is the variant according to European standard.

Cooling water and lube oil combined module

The combined module includes the main components of the cooling water system and the lube oil system and is located in the power house. It provides the engine with a sufficient amount of cooling water and conditioned lube oil. The selection of the appropriate module is made by Caterpillar Motoren GmbH & Co. KG. To prevent contamination from expanding, each engine is equipped with its own combined module.

World Wide Product Support

Training Center: Get the most out of your engine while we are focusing on your individual requirements. We provide a customized engine training for customer and dealer personnel which will help you to get a competent knowledge about the engine, its components and maintenance procedures.
The Engine Training Center is located at the Caterpillar Motoren facility in Kiel – modernized and reopened in 2011. The training classes are conducted for up to eight customers, so you have the best efficiency in learning. Several classrooms and all current engine types and technologies are available – for both theoretical as well as hands-on training.
REParts Center: In addition to the traditional spare parts business, we also offer a broad portfolio of value-added after-sales services, including the reconditioning of wear parts. This enables you to operate your equipment even more efficiently.
Rebuilding MaK genuine parts enables a second life, adding value to your investment and reducing overall owning and operating costs. Through our new MaK Repair and Exchange Parts program, we are able to offer our customers extensive repair and exchange options, which provide same-as-new performance and reliability at a fraction of new price. The results are maximum engine productivity and lower life cycle costs –while reducing the impact on the environment.

SPECIFICATIONS

PRODUCT BROCHURES AND MORE ARE READY TO DOWNLOAD!

Caterpillar product brochures and other informational documents are available for your growing business.

GCM34 Electric Power Generator Set

Electric Power Rating Guide

Tools and Expert Help At Every Turn

Find Dealer > Payment Calculator > Rental Options > Used Options >

MEDIA GALLERY

Photos