Power:4000 - 4400 hp<br> Torque:11671 - 12838 lb-ft<br> Certification:Tier 4 Final / Stage IIIB,EPA Tier 4,EU Stage III

The Path to Zero in Passenger - from Tier 0 to Tier 4 with the QSK95:
 

train equipped with qsk95 engine70% reduction in CO2
95% reduction in PM
85% reduction in HC
86% reduction in NOx
92 units in revenue service 
17.7M miles (and counting)
Over 1.1M hours  
CO2 savings of 380 Metric Tons per locomotive per year compared to the engine its replacing 
Equivalent to 81 passenger cars taken off the road
EPA's Greenhouse Gas Equivalencies Calculator
 

Features & Benefits

Superior Power Density: The QSK95 produces up to 4,400 hp at 1,800 rpms with only 16 cylinders. Four fewer cylinders than other high-speed locomotive engines gives the QSK95 better reliability with fewer moving parts. 
Advanced Power Cylinder Design: This technology reduces the amount of cylinder wear, provides better breathing and thermal stresses, bringing together high-speed efficiency with durability.
Modular Common Rail Fuel System (MRS): This system maintains high injection pressures regardless of engine speed for exceptional performance at every rpm. Compared to unit injection systems, it provides improved response and load pickup with lower noise and vibration.  
Quad Single-Stage Turbochargers: Four compact turbochargers deliver best in-class clean acceleration, tight packaging, excellent serviceability and unmatched cost-effectiveness 
Meets Tier 4 and Stage 5 Emissions Requirements: The QSK’s compact size provides room for a proven, simplistic selective catalytic reduction (or SCR) system instead of an exhaust gas recirculation system. Using the SCR system allows the QSK95 to meet Tier 4 and Stage 5 emissions requirements, operate at lower temperatures, use a smaller cooling system and provide better fuel economy with fluid savings of 5-7% compared to other Tier 4 solutions. 
Two-stage Aftercooling: Two-stage aftercooling provides a better-balanced cooling system that considerably reduces radiator sizing and cost. Tier 4/Stage IIIB engines will have heat rejection similar to Tier 3/Stage IIIA engines. 
Eliminator Oil Filtration: A highly efficient combination of self-cleaning micromesh filters and twin centrifuges enables the QSK95 to achieve industry-demanded extended service intervals. 
PrevenTech Engine Monitoring: Using advanced engine monitoring, analytics and prognostics, data is analyzed remotely to evaluate performance and identify potential issues which are reported back to customers through alter notifications. PrevenTech offers your locomotives experience extended service intervals, reduced repair times and maximum uptime.
184-Day Service Intervals: The QSK95 can meet the service schedules of both high-speed and medium-speed rail.