Rostra TF6 TF8 Lock-Up Solenoid w/2 Wire & Pass-Thru Case Connector (#52-0507)
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.