Constant Voltage Regulator for 1965-1966 Mustangs.This new constant voltage regulator features solid state technology for smooth gauge performance with no adjustment needed. Original units use mechanical contacts that open and close causing gauges to fluctuate needing to be adjusted manually with a screw driver.
When this part goes bad, it may cause one or more of the dash gauges to stop working properly. So when you are installing new dash gauges, you may want to replace that old regulator to prevent this from happening to you.
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Product ReviewsWrite a review
Constant Voltage Regulator 1965-1966 is rated out of 5 by 5.
Rated 1 out of 5 by Dfritz from Fell apart part When they say be careful with the part in the video, they were not kidding. One of the clips easily popped off when re-installing the gauges. When I tried to push it passed the brass head, the entire part came off the poorly mounted plate. I'll be much careful with the replacement.
Date published: 2015-02-04
Rated 5 out of 5 by Gomer from Exact Match and Fit, Worked Great Purchased this and it solved all of my gauge issues
Date published: 2015-09-08
Rated 4 out of 5 by Scandell 01 from Works very well Just put this on a couple of nights ago and works fine. I did notice the male and female clips were in opposite places to the original one that was on there, but i am not 100% sure that this one one was original anyway? Works fine but did not notice any major change in brightness on the dash.
Date published: 2015-10-30
Rated 1 out of 5 by budclark7 from poor quality not good construction. terminal was very loose on back of regulator and came off when I tried to attach wire to it. was given credit for it.
Date published: 2016-03-17
Rated 5 out of 5 by MonroeW from No problems with this item. Fit and works perfect I have bought this item for a few of my projects and have not been disappointed yet.
Date published: 2015-09-07
What about dash lights? I have a new light switch, and all new bulbs, and yes i tried the dimmer, yet no instrument gauge lights work. Does this help that issue as well?
This will not help with your problem, it is probably a blown fuse or wiring problem, check for a good ground.
Date published: 2016-07-19
can the constant voltage unit be bypassed ?
The voltage regulator cannot be bypassed on factory gauges, the gauges WILL be damaged. With aftermarket gauges the regulator is not needed.
Date published: 2016-06-06
my gas gauge works sort of. when full it reads very high, my oil pressure reads high and the temp reads high. but all gauges do work just high. could the CVR be the likely issue
Use a volt meter and test the voltage at one of the sending unit connections like the temp sender. The voltage at the sender lead should be 5 volts. If it is more than the IVR is bad. The IVR drops the voltage for those three gauges from 12 volt to 5 volt. If higher than the 5 volts then the gauges will read higher
Date published: 2015-09-07
Having just installed this, the male/female contacts are on the opposite side to what was previously installed VR - I assume that this makes no difference to its operation?
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