STRENGTH, EVOLVED

THE QSK78. BECAUSE EVOLUTION MAKES GREAT, BETTER.

Evolution. Continuous improvement. These are the forces that have shaped the QSK78 Tier 4. We’ve taken the QSK78 to new levels with a whole suite of smart design and technology upgrades. That means stronger capabilities and an even more robust design.

CUTTING EMISSIONS, REDUCING COSTS, AND IMPROVING RELIABILITY AND DURABILITY TAKES SMART SOLUTIONS

• MODERN ENGINE AND TURBO CHARGING DESIGN leads to improved transient response.
• MODULAR COMMON RAIL FUEL SYSTEM (MCRS) provides precise control of the fuel ejection event that results in lower noise, vibration and smoke, and optimized fuel economy.
• FORGED HIGH-STRENGTH STEEL CRANKSHAFT lowers noise and vibration for operators delivering maximum performance and durability.
• DUAL VISCOUS DAMPERS reduce gear train wear, leading to longer life to overhaul (LTO).
• ELIMINATOR™ SELF-CLEANING FILTRATION SYSTEM combines full-flow and bypass filters with an oil pressure-powered centrifuge; this system extends oil drain intervals and reduces consumable waste, while improving cost of production (COP).

The QSK78 incorporates the best features of our legendary design, including full-authority electronic controls to achieve exceptional combustion efficiency.