QSL9G Gas Compression Applications

Power 175 - 175 hp
130 - 130 kW


Oil and Gas Engines Gas Compression


Wellhead compression applications require reliability and durability not found in every natural gas engine. For dependable low emission operations and world class support, you need Cummins QSL9G – an emissions compliant, high-performance natural gas engine that shares the proven heritage of the Cummins C Series diesel engines and many of the same heavy-duty components. You can depend on the QSL9G to stay emissions compliant, keep maintenance costs down and the gas flowing. Every day.

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

Bore 4.49 in (114 mm)
Stroke 5.69 in (145 mm)
Displacement 8.9 L (543 cubic in)
Engine Power* 175 hp (130 kW)
Compression ratio 9.7:1
Aspiration Turbocharged and aftercooled
Exhaust Type Watercooled manifold
Weight** 1704 lb (773 kg)
Lube oil capacity 8 gal (30 L)
Rotation Counterclockwise

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

Model Rating

Compression Ratio


175 hp (131 kW) @ 1800 rpm



Update (1) This engine emits 0.5 gr/hp-hr NOx, 2.0 gr/hp-hr CO, 0.7 gr/hp-hr VOC and is 2011 NSPS compliant capable with factory supplied AFR and Catalyst

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