Seller notes

After decades of serving the transmission aftermarket as standalone companies, Sonnax and Rostra Powertrain Controls integrated in 2021 to become a single, transmission-focused organization. Both the Sonnax and Rostra brands have been part of Marmon Holdings, Inc. since 2018. Rostra Powertrain Controls production facility is in Laurinburg, N.C., with a technical development center in Grand Rapids, MI....

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