Reliable, Industrial-Grade Power When You Need It Most

When critical operations demand unwavering backup power, the Cummins QSM11-G1 250kW Diesel Generator delivers proven reliability and robust performance. This pre-owned, professionally-maintained generator set combines the legendary durability of Cummins engineering with Onan's trusted packaging expertise to provide a turnkey power solution for industrial facilities, hospitals, data centers, and mission-critical operations.

Built to Perform in Any Environment

Engineered for uncompromising reliability, this generator set comes complete with a weather-proof enclosure that protects your investment from the harshest elements. Whether facing scorching heat, freezing temperatures, or torrential rain, your power generation capability remains secure and operational. The integrated 450-gallon base fuel tank ensures extended runtime during power outages, providing peace of mind when grid power fails and every minute counts.

Key Features & Benefits

• 250kW Standby Power Rating – Ample capacity to support large facilities, manufacturing operations, or multiple buildings during outages
• 480V, 60Hz Output – Standard industrial voltage configuration compatible with most commercial and industrial electrical systems
• Cummins QSM11-G1 Engine – Industry-leading diesel engine renowned for longevity, fuel efficiency, and minimal maintenance requirements
• Weather-Proof Enclosure – Fully protected from environmental exposure, enabling outdoor installation with confidence
• 450-Gallon Integrated Fuel Tank – Extended runtime capability reduces refueling frequency during prolonged outages
• Tier 2 Emissions Certified – Environmentally compliant for peace of mind and regulatory adherence
• Onan Packaging – Factory-integrated components ensure optimal performance and simplified installation
• Approximately 15,000 lbs – Substantial build quality reflecting commercial-grade construction

Pre-Owned Value, Professional Quality

This generator set has been thoroughly inspected and is in excellent operational condition. Purchasing pre-owned equipment from a trusted source allows you to secure premium Cummins reliability at a fraction of the cost of new equipment—without compromising on performance or dependability.

Why Choose Cummins Power Generation?

Cummins is the global leader in backup power solutions, trusted by businesses worldwide for over a century. The QSM11 engine platform is specifically designed for generator applications, offering exceptional fuel efficiency, extended service intervals, and parts availability that ensures your investment remains protected for decades to come.

Technical Specifications at a Glance

• Model: Cummins QSM11-G1 with Onan Generator
• Standby Rating: 250kW
• Voltage: 480V
• Frequency: 60Hz
• Fuel Type: Diesel
• Fuel Tank Capacity: 450 Gallons (Integrated Base Tank)
• Emissions: Tier 2 Certified
• Enclosure: Weather-Proof, Outdoor-Rated
• Approximate Weight: 15,000 lbs
• SKU: GS2706

See It in Action

We believe in complete transparency. View this generator set running under load conditions and verify its operational status for yourself. Additional detailed photos are available in the product documentation to give you a comprehensive view of the unit's condition from every angle.

Note: Video demonstration and extra photo documentation available upon request—contact our team for complete access to all supplementary materials.

Investment-Grade Backup Power for Your Operation

Don't leave your business vulnerable to costly downtime and lost productivity. This Cummins QSM11-G1 generator set represents a strategic investment in operational continuity, protecting your revenue, reputation, and critical systems when utility power fails.

Ready to secure reliable backup power for your facility? Contact our power generation specialists today to discuss installation requirements, delivery options, and technical specifications. Our team is standing by to help you determine if this generator set is the right fit for your application and to answer any questions about capacity, integration, or ongoing maintenance.

Protect what matters most—invest in proven Cummins reliability today.