14V ACU With Ground Fault Protection, Trouble Shooting Light, Black Plastic Connector & 16V OV Over Voltage Protection Built in

Mooney: 800270-505, 880016-503 Electrodelta: VR415F Lamar: DGR1-1

As a factory authorized Zeftronics distributor, we can assure you the fastest delivery and best prices on all of your Zeftronics engine accessory requirements. We carry the complete Zeftronics product line. If you do not see the product you need listed, please call us for price and availability.

We have complete information on file cross referencing Zeftronics part numbers to all OEM part numbers.If you are not sure what part number you need for your aircraft, please call us for immediate assistance.

Download Aircraft Eligibility Chart in .pdf.

Note: Please read wiring instructions carefully prior to installation of voltage regulators. Improper wiring will void warranty All returns subject to manufacturer's warranty inspection. For an accurate cross reference, OEM Part Number Required. For Aircraft Eligibility, download the Eligibility Chart


by Steve C 09/30/2013
I recently replaced my alternator and voltage regulator at the same time. I opted to go with the Zeftronics at the recommendation of other Mooney owners. I have a 1978 M20J. This VR was extremely simple to replace. The change out time took about 5 minutes. I did it myself and my A&P signed it off.