64 Ammeter Gauge

New reproduction 1964 Corvette ammeter gauge. Includes correct color characters & dial, original background color, black cone (1964 only) and aluminum pointer.

Buying new C2 Corvette gauges are more cost effective than having your originals repaired and refaced. Manufactured by an OEM supplier and GM licensed. Zip has available all new gauges to complete your Corvette's instrument cluster restoration.

Ammeter vs. Voltmeter

Corvettes built prior to 1976 came from the factory with an ammeter gauge. Ammeter gauges were designed to measure the flow of electricity and therefore determines if the generator or alternator can maintain an adequate charge for components in use. Positive charge means your system is running well; negative reading means your generator or alternator is unable to keep up and you will probably have battery issues. Voltmeters were introduced in 1977 after the implementation of internally regulated alternators. Rather than measuring flow; a Voltmeter measures force or volts. Alternators in good working condition put out 13.8 ? 14.5 volts.

Can you install a Voltmeter in the place of an Ammeter? To measure flow, Ammeter gauges connect with both positive wires. Voltmeter gauges measure volts with a positive to ground connection. A Voltmeter can be installed in a Corvette with a factory Ammeter gauge, BUT a new ground wire MUST be installed. Otherwise, your new Voltmeter will immediately short out. Incorrectly installed Voltmeters are not eligible for return.

Voltmeters can be bench tested by connecting directly to the positive and negative terminals of a battery. New gauges have a red dot on the positive terminal of the gauge. Ammeter gauges cannot be bench tested without having some type of test stand. Do not test the Ammeter gauge by connecting a ground wire, as incorrectly wiring the gauge will cause damage. At best, resistance can be measured through the gauge with a multi-meter and will ensure electricity is able to flow through the gauge.

(GM Part 1502876)