TriMas Sells Arrow Engine Business to IES Infrastructure Solutions

TriMas sold its Arrow Engine business unit, which manufactures natural gas-powered engines, to IES Infrastructure Solutions (IES). The transaction, which closed on January 31, 2025, removes TriMas from the oil and gas production and industrial markets, shifting the Arrow Engine product portfolio to IES.

“Founded in 1955, Arrow Engine was a legacy TriMas business and part of the TriMas portfolio for several decades,” said Thomas Amato, TriMas President and Chief Executive Officer. “We are pleased to place this business with IES Infrastructure Solutions, the right partner to take Arrow Engine to the next level. This move is another important step in optimizing TriMas’ business portfolio.”

Arrow Engine, with an estimated revenue of approximately $20 million in 2024, will join IES’s Infrastructure Solutions segment and will operate under its original designation.

About Arrow Engine

The business manufactures and delivers its own natural gas-powered engines for remote applications, such as oil field pump jacks, compressors, and replacement parts. It maintains a global distribution network, with primary focus on the United States and Canada. In addition, Arrow Engine offers spare parts for various industrial engines manufactured by external OEMs.

A-Series natural gas engine; image credit: Arrow Engine

“We would like to thank the Arrow Engine management team for its contributions to TriMas and its leadership throughout the sale process,” said Amato. “We remain committed to ensuring a smooth transition to IES Infrastructure Solutions, while continuing to deliver the highest level of service to Arrow Engine’s customers.”

Natural Gas Engine News

Last week, Cummins announced that its natural gas variable-speed engine will power Liberty Energy’s digiPrime hydraulic fracturing platform, and the solution will be deployed before June 2025. The partnership improved the HSK78G natural gas engine’s response time and load acceptance during operation, offering reliable power, increased efficiency, and lower operational costs for the digiPrime fracking platform.

The new digiPrime pump platform is powered by Cummins’ 3,000 hp variable-speed engine, providing a direct-drive solution with significant thermal efficiency. This industry-first design offers lower fuel costs and among the lowest emissions profile within the completions market.

The Cummins engine was launched in March 2019 under a fixed-speed generator set portfolio for the power generation market, but the HSK78G base engine’s primary benefits for the well-servicing industry are adaptability and flexibility. It can tolerate methane content fluctuations in its fuel and uses various gas compositions, delivering flexibility in the field. With adaptability across multiple well-servicing transmissions and front power take-off, the engine provides supports auxiliary power needs when operating below peak load.