Mopar Performance P3690731 voltage regulator

[Steve Stasko]

John is correct here.

You need to use a 1966 replacement regulator with that setup. The Mopar instructions for the electronic ignition kits are very poor for the earlier cars. I just went through this a few years ago with my '65 Coronet. The part number you need is a Wells VR706. It's actually a modern style retrofit with a circuit board instead of the wire coil and point design.

[340Cuda]

They are for sale on Amazon and this is the description:

"To ensure your ignition and electrical systems can provide maximum. performance, install a Mopar constant output voltage regulator. Voltage is held at a constant 13.5 volts. For race applications only. Mopar parts and accessories are engineered and built specifically for your vehicle providing the precise fit, finish and quality you can always expect from Mopar to keep your vehicle looking and running its best."

[Greg Gay]

Thank you, everyone. This is not the first thing that we have found on this car that has been "less than ideal". Still, it's a fun car!

[Greg Gay]

I can't find a Wells RV706. Is the Echlin VR32 an acceptable replacement?

[FED 387]

Wells VR--VR not RV

[Steve Stasko]

That's a stock replacement with the breaker point inside. It will work, but I can't say for how long. I've had issues with those types from various parts stores. I seem to have better luck with the circuit board one, that's why I recommended it.

[John Dinkel]

Best thing to do is update to a 1970 or newer alternator and the electronic voltage regulator.
Pretty easy to do.