The Zetor 934393 is a genuine 12V, 20A, 4-pin electrical relay designed for Zetor agricultural tractors. This OEM component ensures reliable electrical circuit control and is compatible with a wide range of Zetor models across the UR1, UR3, and UR4 series, including FORTERRA, PROXIMA, PROXIMA POWER, PROXIMA PLUS, and CRYSTAL tractors. Weighing approximately 0.05 kg, this relay is built to Zetor's original specifications for optimal performance and durability.