Power： 760 - 950 hp </br> Torque： 2558 - 2897 lb-ft </br> Certification： Tier 2 / Stage II, EPA Tier 2, EU Stage I

Whether you are looking at powering new equipment or repowering an excavator, loader or road paver, the Cummins QSK23 is the answer every time. It delivers the performance and durability you need and the low maintenance and operational costs today's business climate demands.

Available from 760- through 950-hp ratings, these powerful engines come with high-tech electronic standard features for superior reliability and durability on every job. And with Cummins Advisor you can tailor the installation to take into account everything from load factors to operating climate for optimum performance.

Every QSK23 engine is covered by Cummins three-step warranty, one of the most comprehensive and simplest plans in the industry.

Features & Benefits

Cummins QSK23 shares the proven power cylinder design of our QST30 and QSK78 engines, for reliability and durability you can count on. Every day and every year. Here are just some of the heavy-duty components that make the QSK23 an excellent choice for the largest construction equipment.

One-Piece Cast Iron Block - Heavy-duty design with wide cylinder spacing for long life and excellent rebuildability
Full-Authority Electronic Controls - Sophisticated electronic controls optimize combustion based on engine load, atmospheric conditions, even fuel quality; they also provide advanced monitoring, diagnostic and reporting capabilities, with integrated engine protection features
High-Pressure Injection - Works at up to 29,000 psi to optimize engine response with the best fuel economy and lowest emissions
Precision-Honed Cylinder Liners - Precise liner machining with superior metal technology creates exceptional surface smoothness and durability; made of ferrous cast ductile iron so that expansion and contraction won't cause excess wear
Ferrous Cast Ductile Iron Pistons - For even expansion and contraction during thermal cycles; the same technology found in our 3500-hp QSK78
Large-Diameter Camshaft - 105 mm of hardened surfaces handle high load capacities; created specifically to work with high-pressure injection systems
Rear Gear Train - Significantly reduces engine noise
Seven-Bolt Cylinder Head - Delivers increased clamping force, enabling high cylinder and injector pressures
Two-Stage Oil Filter - Combination full-flow and bypass oil filter reduces maintenance costs as it extends service intervals