QSK19 for Construction (Tier 3)

Power 506 - 700 hp
377 - 522 kW
Torque 1775 - 2032 lb-ft
2407 - 2755 N•m
Certification Tier 3 / Stage IIIA



Available Regions

US and Canada,  Russia,  Africa & Middle East,  Mexico,  Philippines,  Singapore,  Brazil,  Bolivia,  Uruguay,  Paraguay,  Argentina,  Colombia,  Europe,  Central America,  Japan,  Korea


The QSK19 meets Tier 3 and Stage IIIA emissions standards, using in-cylinder technology, a simple and cost-effective solution that maintains the proven performance, dependability and durability while operating cleanly and efficiently.

The Tier 3 approved QSK19 is a powerful example of Cummins Quantum System technology at work. In the QSK19, state-of-the-art electronic controls and Cummins modular common-rail fuel system ensure clean, efficient performance and minimum maintenance. In the same compact footprint as its predecessor.

Available in a range of ratings from 506-700 hp (377-522 kW), the QSK19 offers an impressive range of standard features. And its fuel system is tolerant to a wide variety of worldwide fuels, including high-sulfur diesel and Japanese kerosene.

To ensure that every QSK19 is perfectly matched to every piece of equipment, Cummins Advisor is ready to provide expert assistance with your installation process.

Every QSK19 engine is covered by Cummins three-step warranty, one of the most comprehensive and simplest plans in the industry.

The in-cylinder combustion technology and electronic controls of the QSK19 not only ensure clean operation that meets Tier 3 and Stage IIIA emissions standards, but also ensure powerful and efficient operation every time. With Cummins modular common-rail fuel system, injection pressure can be virtually constant at all speeds - realizing greater flexibility and precision in controlling both injection rates and timing.

Engine Type In-Line, 4-Cycle, 6-Cylinder  
Displacement 1159 cu in 19 L*
Advertised Horsepower 510-700 hp 379-522 kW
Peak Torque 1625-2101 lb-ft 2203-2849 N•m
Bore and Stroke 6.25 in x 6.25 in 159 mm x 159 mm
Aspiration Air-to-Air Charge Air Cooled  
Oil System Capacity 80 U.S. qt 76 L*
Coolant Capacity** 44 U.S. qt 41.6 L*
Length 66.1 in 1679 mm
Width 34.3 in 872 mm
Height 63.6 in 1616 mm
Weight (wet) 4,250 lb 1,928 kg

* L = Liters/Litres

** Engine only

Engine Model Advertised hp (kW) @ rpm Peak Torque lb-ft (N·m) @ rpm
QSK19  700 700 (522) @ 1800 2200 (2980) @ 1400
QSK19  675 675 (503) @ 1800 2200 (2980) @ 1400
QSK19  600 600 (447) @ 2000 1950 (2643) @ 1500
QSK19  560 560 (418) @ 2000 1775 (2407) @ 1500
QSK19  525 525 (391) @ 2000 1775 (2407) @ 1500
QSK19  506* 506 (377) @ 1800 2032 (2755) @ 1300
 All ratings are Tier 3 and Stage IIIA approved. All ratings are intermittent unless otherwise noted. Additional ratings are available. Check with your Cummins distributor or dealer.
*Indicates continuous rating

Every Cummins QSK19 offers these standard features:

  • Extra-Wide Gear Train - Quieter, longer lasting and capable of handling high loads with ease.
  • Single-Stage Holset Turbocharger - Lower intake air temperatures provide increased air density, resulting in more power and lower emissions from less fuel.
  • Full-Authority Electronics - Programmable electronic controls optimize combustion at all altitudes and conditions. Superior performance is driven by an upgraded CM850 ECM with twice the processing speed of its predecessor.
  • Two-Stage Oil Filter - Combination full-flow and bypass oil filter reduces maintenance costs as it extends service intervals.
  • Precision-Honed Cylinder Liners - Precise liner machining with superior metal technology creates exceptional surface smoothness and durability.
  • Power Cylinder Package - Proven single-piece ferrous cast ductile iron pistons for maximum durability and reliability. This advanced design also uses nitrided liners and cast-iron top rings to handle injection pressures with exceptional durability.
  • High-Durability Camshaft - Microfinishing makes it last twice as long as previous designs. Improved contact between the crosshead and rocker lever reduces wear and improves durability.
  • Fleetguard® ES Filtration - Fleetguard's ES oil filter keeps your equipment on the job with a combination full-flow and bypass design that simplifies service and reduces replacement costs.
Maintenance Intervals

Minimum maintenance has been built into every QSK19 engine. One example is the single-piece ferrous cast ductile iron pistons that provide exceptional durability and cut oil consumption by 20%. Cummins QSK19 engines require an oil change every 250 hours.

Extended Service Options: oil service costs can be significantly reduced and oil drains extended up to 1,000 hours with Cummins Eliminator™ centrigual filtration system and to even longer with Centinel™ oil replacement service.

For complete maintenance information, please consult your Owner's Manual or Operations and Maintenance Manual.

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