Cummins QSL    Cummins Southern Plains, Ltd.

Having enough horsepower is important, but what’s really critical in your equipment is having the pulling power you need – when you need it.

QSL Engine Applications
• Agricultural
• Construction

Key Features
• Superior Performance.  The QSL's improved performance is gained through its use of superior diesel engine technology. 
• Low Maintenance Costs.  Greater reliability with fewer parts.
• Better Coverage. One of the simplest and most comprehensive coverage plans anywhere.

Performance
• Full-Authority Electronic Controls offer advanced diagnostics and programming options. The Electronic Control Module is totally programmable, so you can specify performance parameters to exactly match your equipment. It’s a concept we call PowerMatch. Then, we optimize the engine’s performance with other vehicle components, using the Cummins Advisor program.
• Cummins Advisor software builds a virtual model to show how the QSL engine is installed in your equipment then makes sure that all systems work as a team for optimum performance.
• The combination of 24 valves for better "breathing," a patented high-pressure common rail system with centered fuel injectors and a Holset wastegated trubocharger give the QSL responsive power across the engine speed range.
• The QSL's two-piece articulated steel pistons with targeted piston cooling, heavy-duty roller followers and a high-capacity lubrication system are all housed within a structurally reinforced block so rugged it can easily handle the added pressure of a compression brake.
• High-pressure common rail fuel system delivers exceptional throttle response at any rpm.
• For greater pulling power the QSL comes with a torque rise of up to 50% and 1150 lb-ft of peak torque.
• The QSL is significantly quieter than the larger engines it’s designed to replace.
• Wastegated Turbochargers are custom-designed by Holset for high-speed ratings. Wastegates provide for better low engine speed performance and high engine speed boost.

Emission Standards
• Tier 2/Stage 2 Certified
• Maintains the lowest possible cost of installation.

Easy Maintenance
When it comes to routine maintenance, less is more. And the QSL is designed for less.

• Low-Maintenance Fuel Filter Assembly - Integrated water separator and water-in-fuel sensor help prevent performance
problems that result from contaminated fuel. A 10-micron filter is designed for filter change intervals of 500 hours – consistent
with oil change intervals.
• The rocker system is designed so that it won’t need to be checked for at least 5,000 hours of operation.
• Fluid lines are integrated in the engine block to eliminate leaks and ruptured hoses.
• Accessories (including the fan drive) have been direct-mounted to the block for better alignment with no slippage. This design feature, with an integrated low-mount belt tensioner, remarkably decreases wear and adjustment of the serpentine belt.