Cummins’ S17 Delivers 1000 kW Within a Compact Footprint

The S17 is backed by more than 25,000 hours of rigorous testing and validation.
Oct. 10, 2025
3 min read

Built on a groundbreaking 17-liter engine platform, the S17 is a revolutionary power generation solution that embodies Cummins’ century-long legacy of engineering excellence and innovation. This purpose-built solution was designed from a clean sheet with the sole focus of delivering 1000 kW of power generation within a compact footprint, specifically to meet the demands of urban environments for high-performance, cost-efficient power solutions.

Uninterrupted power is mission-critical for water and wastewater treatment operations. This high-performance line of generator sets is built on a next-gen engine platform to meet the demanding needs of water infrastructure with exceptional reliability and efficiency. The line is a solution for municipal utilities and industrial operators.

The S17’s compact footprint saves valuable space and simplifies installation.

Power density ensures users get more energy output without needing a larger generator. The unit features longer service intervals with increased reliability and affordability, lower annual average maintenance costs and includes a three-year base warranty. The S17 is backed by more than 25,000 hours of rigorous testing and validation. By taking a clean-sheet approach and purpose-building it for power generation, the S17 elevates performance. The line is engineered for sustainability, compatible with paraffinic fuels such as hydrotreated vegetable oil.

Key features include:

  • Two-Stage Turbocharger: Experience optimal airflow and superior volumetric efficiency, ensuring the engine consistently delivers peak performance.
  • Advanced Fuel System: Powering your operations with a fuel system adapted from Cummins' heavy-duty vehicle technology. This robust system is specifically tailored to meet the rigorous demands of 1000kW power generation.
  • Optimized Cooling Strategies: Benefit from innovative cylinder cooling and intelligently engineered coolant flow paths. These work in harmony to efficiently manage heat, maintaining consistent engine temperatures and enhancing durability even under the most demanding conditions.
  • Precision Material Usage: Through advanced ALD tools, material is placed exactly where needed. This ensures an optimal balance of strength and efficiency, contributing to the engine's compact yet powerful design.
  • Engineered Bearing Design: The bearing system is specifically engineered to withstand the extreme stresses associated with a 1000kW alternator, all while maintaining a small footprint.

 For more information, visit www.cummins.com.

About the Author

Michael Roth

Editor

Michael Roth has covered the equipment rental industry full time for RER since 1989 and has served as the magazine’s editor in chief since 1994. He has nearly 30 years experience as a professional journalist. Roth has visited hundreds of rental centers and industry manufacturers, written hundreds of feature stories for RER and thousands of news stories for the magazine and its electronic newsletter RER Reports. Roth has interviewed leading executives for most of the industry’s largest rental companies and manufacturers as well as hundreds of smaller independent companies. He has visited with and reported on rental companies and manufacturers in Europe, Central America and Asia as well as Mexico, Canada and the United States. Roth was co-founder of RER Reports, the industry’s first weekly newsletter, which began as a fax newsletter in 1996, and later became an online newsletter. Roth has spoken at conventions sponsored by the American Rental Association, Associated Equipment Distributors, California Rental Association and other industry events and has spoken before industry groups in several countries. He lives and works in Los Angeles when he’s not traveling to cover industry events.

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