Cummins QSK50 T4 Dual Fuel is purpose-built for today’s industry. It offers the greatest diesel savings and runs longer than any other dual fuel engine on the market, with 20,000+ proven life to overhaul (LTO) hours. It’s dual fuel — done right.
QSK50 Tier 4 Dual Fuel Engine
Optimizing Productivity
We’re going to give it to you straight — just like we always have. When it comes to diesel savings with dual fuel, substitution rate is important. But it’s not everything. Many factors contribute to overall fuel savings, including diesel efficiency, natural gas usage and engine speed. With the QSK50 T4 Dual Fuel engine, we’ve carefully balanced all these factors to deliver not only a high substitution rate, but also the industry’s greatest fuel savings.
Optimizing Savings
Our EPA Tier 4 Final-certified QSK50 Dual Fuel solution provides a maximum substitution rate of 70% at the ideal operating range of 1,500–1,950 rpm. Combined with our unique combustion recipe, the QSK50 T4 Dual Fuel can maximize diesel savings at a rate unmatched by anyone else in the market today.
Diesel saved per hour, per unit:
370 L / hr - 113 L / hr = 257 L / hr saved per unit*
Diesel saved per year (2,000 pumping hours), per unit:
257 L / hr x 2,000 hrs = 514,000 L / year saved per unit*
Your greatest partner at the well site
Experience power that's made for now
The QSK50 T4 Dual Fuel provides dynamic system status and control
Full failure mode and effects analysis (FMEA), multiple alarm levels, cylinder bank balancing, and multipoint monitoring all work together to deliver a complete system picture that highlights:
- Load signal from engine control module (ECM)
- Engine speed monitoring from ECM
- Exhaust gas temperature monitoring
- Vibration monitoring
- Ambient temperature monitoring
- Reference gas pressure monitoring
The QSK50 Dual Fuel saves you time because your site operation remains constant. It saves you money by reducing your fuel costs. And it protects your productivity by keeping your technicians’ responsibilities the same.
Dual Fuel Upgrade Options
Upgrade options
I Have a Tier 2 Engine
- Tier 2 Rebuild restores your engine to original or better performance
- Tier 2 Dual Fuel requires only minor changes to the base engine
Upgrade Options
I Have a Tier 4 Engine
- Tier 4 Rebuild restores your engine to original or better performance
- Tier 4 Dual Fuel retrofits your current engine with few equipment integration requirements
Upgrade Options
I need a new dual fuel solution.
- Tier 2 Dual Fuel lowers your initial investment
- Tier 4 Dual Fuel keeps you compliant with the latest standards
