engines
G855 & GTA855 Gas Compression Applications
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Power

157 - 286 hp 117 - 213 kW

Torque

lb-ft 0 N•m

Certification

Non-certified

Product Availability

Africa Middle East, Asia Pacific, Europe, India, Latin America, North America

Applications

Oil and Gas Engines
Gas Compression

The demands of wellhead and gathering compression applications require an engine that is reliable and durable. For dependable operations and world class support, you need the Cummins G855 and GTA855 – a high-performance natural gas engine that shares the proven heritage of the Cummins diesel engines and many of the same heavy-duty components. You can depend on Cummins engines to keep maintenance costs down and the gas flowing. Every day.

Specifications

General Specifications
Inline 6-Cylinder, 4-Cycle, Natural Gas

Bore 5.5 in (140 mm)
Stroke 6.0 in (152 mm)
Displacement 14.0 L (855 cubic in)
Engine Power* 157-286 hp (117-213 kW)
Compression ratio NA: 10:1, TA: 8.5:1
Aspiration Naturally aspirated or turbocharged and aftercooled
Exhaust Type Watercooled manifold
Weight** 2970 lb (1347 kg)
Lube oil capacity 15 gal (57 L)
Rotation Counterclockwise

* Rating dependent
** Weight is approximate and varies with options.



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Ratings
Model Rating

Compression Ratio

 Emissions
G855

188 hp (140 kW) @ 1800 rpm

10:1

 (1)

G855

157 hp (117 kW) @ 1500 rpm

10:1

 (1)

GTA855

286 hp (213 kW) @ 1800 rpm

8.5:1

 (2)

GTA855

225 hp (168 kW) @ 1800 rpm

8.5:1

 (1)

GTA855

238 hp (177 kW) @ 1500 rpm

8.5:1

 (2)


(1) CUSTOMER-COMPLIANT UPGRADEABLE – This engine is capable of operating with a Three-Way Catalyst at this rating. It is the responsibility of the owner/operator to upgrade the engine with an air/fuel ratio controller and a Three-Way Catalyst capable of meeting the SI NSPS regulations. The owner/operator is required to conduct site compliance testing and submit documentation per the EPA SI NSPS requirements.

(2) This engine does not meet the revised EPA SI NSPS requirements for non-emergency engines and is offered only for use outside the U.S.

Gear Ratio Calculator

An engine’s performance in a vehicle is heavily dependent upon the rest of the driveline configuration. Please use this simple interactive gear ratio calculator as a tool to help plan your build for optimum performance, fuel economy, or the perfect balance to suit your needs.

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