QSK23 Well Servicing Applications

Overview

QSK23 Well Servicing ApplicationsIn demanding oil and gas applications, dependability is everything. That’s where the superior uptime and productivity of the QSK23 makes the difference.

Dependability makes the QSK23 the right engine choice. Every time. Its Inline-6 configuration offers up to 950 hp (708 kW) to easily handle high load factors.

So whether you are spec'ing new equipment or repowering an existing unit, the QSK23 is the best way to improve performance, productivity and profits.

Designed for the well servicing market, the QSK23 delivers exceptional reliability and low cost of operation.

For more information, see the QSK23 spec sheet.

Specifications

General Specifications
Inline, 6-Cylinder, 4-Cycle, Diesel Engine

Bore 6.69in (170 mm)
Stroke 6.69 in (170 mm)
Displacement 23 L (1404 cubic in)
Engine Power* 760-950 hp (567-708 kW)
Aspiration Turbocharged/Charge Air Cooled
Frac Rig Weight** 6000 lb (2,722 kg)
Coolant Capacity 12.2 gal (46.2 L)
Lube Oil Capacity 13.7 gal (52L)
Rotation Clockwise (viewed from the front of the engine)

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

Performance
In demanding oil and gas applications, dependability is everything. That’s where the superior uptime and productivity of the QSK23 makes the difference.

Dependability makes the QSK23 the right engine choice. Every time. Its Inline-6 configuration offers up to 950 hp (708 kW) to easily handle high load factors.

So whether you are spec'ing new equipment or repowering an existing unit, the QSK23 is the best way to improve performance, productivity and profits.

Designed for the well servicing market, the QSK23 delivers exceptional reliability and low cost of operation.

Its high-pressure injection (HPI) fuel system results in more complete combustion for superior engine response across the entire power curve and the lowest fuel consumption in its class. Its compact and balanced inline six-cylinder design and proven durability in the toughest well sites make it a great choice to repower vee engines of similar displacement.

The one-piece Ferrous Cast Ductile (FCD) iron pistons and robust cylinder head work to improve long-term durability and dependability. A one-piece cast-iron block, forged-steel crankshaft and a large-diameter camshaft ensure long, reliable performance between overhauls, with the capability of multiple rebuild cycles.

Rated from 760-950 hp (567-708 kW) in both emissions-certified and non-certified specifications, the QSK23 is the ideal choice for high power density applications. It has the proven technology you need to raise productivity and lower costs. Every Well.

Warranty
The best warranty in the business, which includes full coverage for unlimited hours during the first year, extending through two years or 2,000 cumulative hours (whichever comes first). The base warranty also includes 3-year/10,000-hour standard protection on major components. Extended warranties are available as well.

*The QSK23 meets Tier 2 standards in the U.S. now, which went\ into effect in 2006 for engines over 750 hp (560 kW).

Model: QSK23-950
Output Power: 950bhp

Engine Speed
RPM
Torque Output
lb-ft (N-m)
Power Output
hp (kW)
BSFC
lb/hp-hr (g/kW-hr)
1400 2,897 (3,928) 772 (657) 0.334 (203.165)
1500 2,823 (3,827) 806 (601) 0.334 (203.165)
1600 2,748 (3,726) 837 (624) 0.334 (203.165)
1800 2,599 (3,524) 891 (664) 0.335 (203.773)
2000 2,451 (3,323) 933 (696) 0.334 (203.165)
2100 2,376 (3,221) 950 (708) 0.339 (206.206)

Model: QSK23-860
Output Power: 860 bhp

Engine Speed
RPM
Torque Output
lb-ft (N-m)
Power Output
hp (kW)
BSFC
lb/hp-hr (g/kW-hr)
1400 2,785 (3,776) 742 (553) 0.335 (203.773)
1500 2,775 (3,762) 793 (591) 0.334 (203.165)
1600 2,748 (3,726) 837 (624) 0.335 (203.773)
1800 2,510 (3,403) 860 (641) 0.335 (203.773)
2000 2,258 (3,061) 860 (641) 0.338 (205.598)
2100 2,151 (2,916) 860 (641) 0.346 (210.464)


Engine Finder Specifications

Markets
Certification Level Tier 3 / Stage IIIA
Tier 2 / Stage II
Tier 1
Power 760 - 950 hp / 567 - 708 kW
Torque 2785 - 2897 lb-ft / 3776 - 3928 N•m

Ratings

Model Advertised Power BHP (kW) Peak Torque lb-ft (Nm) Emissions Certification Level
QSK23 950 (708) @ 2100 rpm 2897 (3928) @ 1400 rpm Tier 2
QSK23 860 (641) @ 2100 rpm  2785 (3776) @ 1400 rpm Tier 4i

G-Drive Ratings

Model Advertised Power BHP (kW) Hz Rating Emissions Certification Level
QSK23 1085 (809) @ 1800 rpm 60 Tier 3
QSK23 940 (701) @ 1500 rpm 50 Tier 3

Brochures Available

Title Bulletin Number Request View  
Cummins Power For Well Servicing Brochure 4087355 View  Download
Tier 4 Final High-Horsepower Engines For Oil And Gas Brochure 4087305 Request View  Download