This 12 Volt External Voltage Regulator is a high quality direct replacement for 1973-1974 VWs operating on an alternator with an external regulator. Manufactured by BOSCH, this voltage regulator provides optimal performance and ensures your Volkswagen remains operating at its best.
TECH NOTE: Most voltage regulator failures are caused by worn or dirty electrical connections.Consider cleaning all connections with our electrical contact cleaner and a small brush and replacing the positive and negative battery cables and transmission to chassis ground strap whenever replacing a voltage regulator.