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Key Features

Transpo Voltage Control box, V1200. External Voltage Regulator, 20amp. Designed for 1 Alternator and can be mounted under Dash to keep Heatsink cool. 13.0v-16.0v. No POM on this unit, this is a "set it and forget it". Included with the voltage control box will be our harness connections and Internal voltage regulator to external terminal connector. Note: this is to convert your Denso Hairpin, internally regulated Alternator to be Externally regulated. If you want to order Just the external voltage regulator, give us a call.  NOTE: you may received PN V1300 which is same as V1200 as the V1200 is slowly being superceeded to V1300

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