Power:760 - 1200 hpa<br/> Torque:2471 - 3750 lb-ft<br/> Certification:Tier 2 / Stage II,EPA Tier 2,EU Stage I<br/>

Cummins QST30 powers the biggest construction equipment and tackles the biggest jobs. For years, it's delivered exceptional performance and durability with low maintenance and operating costs.

Available in ratings from 760-1200 hp (567-895 kW), the QST30 uses advanced electronics and robust standard features for superior reliability and durability.

Every QST30 engine is covered by Cummins three-step warranty, one of the most comprehensive and simplest plans of the industry.

Features & Benefits

Cummins QST30 shares the proven power cylinder design of our QSK78 engine, for reliability and durability you can count on. Here are some of the heavy-duty components that make the QST30 the right choice for your applications:

Holset HX60 Turbochargers - Designed for improved air handling with an extended life-to-rebuild.
Full-Authority Electronic Controls - Quantum System electronic engine management provides engine control and monitoring for superior performance, fuel efficiency, diagnostics and prognostics. Programmable parameters let you customize engine performance to equipment use, including:
Min/Max Governor
All-Speed Governor
Engine Protection
Multilevel Security
Switched Derate
Multiunit Synchronization
Programmable Intermediate Speeds
Remote Throttle
Load Profile Monitor
Low Idle Controls
Ambient Condition Derate
Tailshaft Governor
Engine Start-Up Speed Limiter
And much more
Ductile Iron Pistons - Provide increased strength and durability to handle increased cylinder pressures for longer life-to-overhaul while allowing higher ratings over larger displacement engines with aluminum pistons.
Bosch RP39 Fuel Pump - Highly reliable, highly durable. Provides the higher injection pressures needed for higher horsepower with lower emissions.
Advanced Valve Metallurgy - Exhaust valves are stelite-faced for longer life. Intake valves have a Nitride coating, with triballoy valve seats and chrome stems for reduced wear.
High-Capacity Oil Pump and Pan - Provide superior lubrication for longer component life and extended service intervals.
Swirl-Port Cylinder Head - Provides advanced airflow to reduce emissions and increase low-end torque.
Electric Fuel Lift Pumps - Eliminate the need for manual priming of the fuel system and provide for quicker, more reliable starts.
Prelub Starter - Prevents starts without oil pressure and dry starts, resulting in increased life-to-rebuild.
Flexplate Coupling - Factory-engineered for direct mounting of Allison DP 8962 and S 9800 transmissions.

Options include:

CENTINEL™ - The Advanced Engine Oil Management System from Cummins, totally eliminates oil changes when used in conjunction with an oil quality program.
CENSE™ Advanced Engine Monitoring - Allows you to monitor engine performance cylinder by cylinder on a real-time basis. Also provides trending charts for preventive maintenance planning.
Grid Heater Option - Eliminates the need for ether and will start the engine down to -20 degrees Fahrenheit.