QSK50 Land-Based Power Module for Drilling

Power 1450 - 1450 hp
1081 - 1081 kW
Certification Tier 2 / Stage II


Oil & Gas Engines Drilling


Cummins QSK50 drilling power modules are designed, developed, assembled and tested at the Cummins Oil and Gas Center of Excellence and are delivered with the full force of Cummins behind them. Every component from the engine to the alternator is built to provide optimum performance, reliability, and versatility for oil and gas drilling applications. The complete power module package is backed by Cummins service network and warranty, ensuring greater uptime availability and increased rig efficiency.

V-16, 4 Stroke Diesel

Bore 159 mm
Stroke 159 mm
Displacement 50.3 L
Aspiration Turbocharged and aftercooled
Governor Electronic
Cooling system Vertical or horizontal discharge options
Weight w/o radiator 29,500 lbs (13,385 kg)
Cooling system capacity Vertical: 117 gallons
Horizontal: 110 gallons
Lube oil capacity 72 gal (272 liter)
Base design Three point mounting
Alternator rotor design Two bearing
Alternator insulation

Class H

Voltage 600 V
Power factor


Power Module Specification

Governor regulation class ISO8528 Part 1 Class G3
Voltage regulation, no load to full load

± 0.5%

Random voltage variation ± 0.5%
Frequency regulation Isochronous
Random frequency variation ± 0.25%

These modules are to be used in continuous operation at varying load land drilling applications where maximum power is needed for short periods of time during initial starting or sudden overload. Refer to engine data sheet for additional information.

G-Drive Ratings

Model Advertised Power BHP (kW) Hz Rating Emissions Certification Level
QSK50 1971 (1470) @ 1800 60 Tier 2
QSK50 1905 (1421) @ 1500 50 Tier 2
QSK50 1480 (1104) @ 1200 60 Tier 2


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