Rostra Powertrain Controls is a leading engineering and manufacturing facility for automatic transmission parts for both OE ( ... Original Equipment) and aftermarket parts. We pride ourselves on quality, innovation, and market coverage. Our parts cover roughly 95% of the market with our primary product categories of solenoids, sensors, wire harnesses, switches, and modulators. We are an OE manufacture that also serves the Aftermarket industry. In doing so, we are able to make any necessary design improvements to current products to have them meet, and in most cases exceed, OE standards. Rostra Powertrain Controls is a Marmon/Berkshire Hathaway Company. read more