Triumph Workers Strike in West Hartford
175 Connecticut-based UAW Local 405 members walked off the job after contract talks over job security, wages and health care reached an impasse.
Updated on Nov. 3, 2026 in Unions
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About 175 workers at Triumph's West Hartford facility went on strike on Monday after a 148-1 vote by UAW Local 405 members, following a breakdown in contract negotiations. The previous five-year contract expired on the Saturday before the strike.
Why it matters
The plant makes fuel systems for commercial and military aircraft, so the strike could affect that supply chain. The dispute also centers on whether a future buyer of Triumph would be bound to honor the union and its contract.
The strike followed a 148-1 vote, with 86% of UAW Local 405 members participating, and the previous five-year contract expired the Saturday before. Triumph was acquired for approximately $3 billion last year, and the outcome of talks remains unresolved.
The players
UAW Local 405
The local chapter of the United Auto Workers union representing Triumph workers at the West Hartford facility.
Triumph
An aerospace manufacturer headquartered in Denver, Colorado, that makes aircraft components including fuel systems.
Berkshire Partners
A Boston-based private equity firm that jointly controls Triumph alongside Warburg Pincus.
Warburg Pincus
A New York-based global private equity firm that jointly controls Triumph alongside Berkshire Partners.
The details
Triumph presented a last, best and final offer and declined further discussion of the union's core issues of job security, wages and health care. The union also seeks successorship language guaranteeing that a future buyer would recognize the union and contract, which Triumph has refused to agree to as it signals intent to sell the business again.
Timeline
Sept. 22: Contract negotiations began between Triumph and the union.
Last Saturday: The previous five-year contract expired.
Last Thursday: Talks reached an impasse after Triumph's final offer.
Monday: 175 workers went on strike at the West Hartford facility.
Next year: The UAW contract covering Forest, Ohio workers expires.
Roadmap
The dispute reflects a recurring pattern in which private equity owners of U.S. manufacturers resist successorship language that would bind future buyers to existing union contracts. Triumph's stated intent to sell again places its workers in that familiar position.
Workers at the West Hartford plant are without pay while the strike continues, and the outcome will determine their job security, wages and health coverage. Residents who rely on the local employer or on aerospace supply chains may see effects on jobs and production timelines.
The takeaway
The dispute highlights how a change in private equity ownership can put a union contract at risk, and why successorship language matters to workers whose employer may be sold again. Readers following the West Hartford workforce should watch whether talks resume on job security, wages and health care.
Further reading
For more on labor disputes in the region, see Unions.
Source note: This article includes information reported by New Haven Register.
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