TransDigm to buy two businesses for $2.2 billion in aerospace aftermarket push

Industry:    22 hours ago

Aircraft components maker TransDigm Group said on Friday it would buy Jet Parts Engineering and Victor Sierra Aviation from private equity firm Vance Street Capital for about $2.2 billion, including tax benefits, further expanding its push into the aerospace aftermarket.

Both Jet Parts and Victor Sierra design and manufacture aerospace aftermarket solutions, which refer to the sales of replacement parts and maintenance products after the original equipment has been sold.

Demand for aircraft parts and maintenance is booming as airlines extend the lives of their fleets amid delivery delays, making the high‑margin aftermarket services business one of the most profitable segments of aerospace.

In 2025, Jet Parts and Victor Sierra, which have commercial, regional and cargo aviation customers, collectively generated about $280 million in revenue.

The companies’ entire commercial aftermarket revenue came from proprietary alternative parts, offering a unique value proposition, according to TransDigm CEO Mike Lisman.

In December, TransDigm bought Stellant Systems — about 50% of whose revenue comes from the aftermarket — from Arlington Capital Partners for $960 million in cash.

The aerospace parts maker also completed the $765 million acquisition of proximity sensor maker Simmonds Precision Products in October, about 40% of whose revenue comes from the aftermarket.

“This is a natural progression for TransDigm. We have had a long-term and sizable Parts Manufacturer Approval effort within our existing operating units,” said Nick Howley, TransDigm’s Chairman.

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