QSK38 for Drilling


QSK38 for Drilling

Whether running mudpumps and drawworks on mechanical installations or driving Power Modules for electric rigs, the Cummins QSK38 engines provide optimum performance, reliability, and versatility for drilling.

The QSK38 high-pressure injection system and electronic controls ensure clean, powerful and efficient operation every time. The Electronic Control Module (ECM) continuously monitors data from strategically placed sensors within the engine, optimizing the fuel-to-air mixture for maximum combustion. Fuel is injected at pressures exceeding 25,000 psi. This results in better utilization of fuel with fewer emissions. Getting more energy out of every drop of diesel fuel also results in greater power.


Engine Type

  • V-configuration, 4-Cycle, 12-Cylinder


  • Engine certified to U.S. EPA Nonroad Source Emissions Standards, 40 CFR 89, Tier 2


  • 2307 cubic in (38 liters)

Bore and Stroke

  • 6.26 in x 6.26 in (159 mm x 159 mm)


  • Turbo charged and aftercooled


Length 87 in 2209 mm
Width 57.2 in 1452 mm
Height 72.7 in 1846 mm
Weight (wet) 9039 lbs 4100 kg

* Dimensions and weight will vary by engine configuration.

Engine Finder Specifications

Certification Level Tier 2 / Stage II
Power 920 - 1260 hp / 686 - 940 kW


Model Certification HP kW Max Rated Speed (RPM) Fuel Consumption at Rated Speed

EPA Tier 2

920 686 1200 0.348 lb/hp-hr (211.7 g/kW-hr)

EPA Tier 2

1086 810 1800

0.358 lb/hp-hr (217.8 g/kW-hr)


EPA Tier 2

1260 940 1800

0.352 lb/hp-hr (214.1 g/kW-hr)

Non-certified ratings are also available. Please contact your distributor.

Brochures Available

Title Bulletin Number Request View  
Cummins Power For Oil And Gas Drilling Brochure 4087346 Request View  Download
Modular Common Rail Fuel System (MCRS) Overview Flyer 4087371 Request View  Download
QSK38 Drilling Engine Spec Sheet 4087185 View  Download
QSK38 Oil And Gas Drilling And Pumping Applications Flyer 4087391 View  Download
Tier 4 Final High-Horsepower Engines For Oil And Gas Brochure 4087305 Request View  Download