2025 Cummins QST30 For Construction (Tier 2) QST30-900

2025 Cummins QST30 For Construction (Tier 2) QST30-900

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 may include:

• Designed for improved air handling with an extended life-to-rebuild.

• Quantum System electronic engine management provides engine control and monitoring for superior performance, fuel efficiency, diagnostics and prognostics.

• 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

• 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.

• Highly reliable, highly durable. Provides the higher injection pressures needed for higher horsepower with lower emissions.

• Exhaust valves are stelite-faced for longer life. Intake valves have a Nitride coating, with triballoy valve seats and chrome stems for reduced wear.

• Provide superior lubrication for longer component life and extended service intervals.

• Provides advanced airflow to reduce emissions and increase low-end torque.

• Eliminate the need for manual priming of the fuel system and provide for quicker, more reliable starts.

• Prevents starts without oil pressure and dry starts, resulting in increased life-to-rebuild.

• Factory-engineered for direct mounting of Allison DP 8962 and S 9800 transmissions.