Standard Ignition Alternator Capacitor,Radio Capacitor RC-3
Standard Ignition Alternator Capacitor,Radio Capacitor RC-3 - view 2
Standard Ignition Alternator Capacitor,Radio Capacitor RC-3 - view 3
Standard Ignition Alternator Capacitor,Radio Capacitor RC-3 - view 4
Standard Ignition Alternator Capacitor,Radio Capacitor RC-3
Standard Ignition Alternator Capacitor,Radio Capacitor RC-3 - view 2
Standard Ignition Alternator Capacitor,Radio Capacitor RC-3 - view 3
Standard Ignition Alternator Capacitor,Radio Capacitor RC-3 - view 4

Radio Capacitor for 1974-1975 Chevrolet Impala & More - Standard Ignition RC-3

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$12.99
MPN: RC-3
Item Package Quantity: 1
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Standard Ignition Alternator Capacitor,Radio Capacitor P/N:RC-3
Standard Ignition Alternator Capacitor,Radio Capacitor P/N:RC-3
$12.99

Filter the electrical noise a charging system can push into your audio system with the Standard Ignition Alternator Capacitor / Radio Capacitor (RC-3). This noise-suppression capacitor connects at the charging/ignition circuit to shunt radio-frequency interference to ground, helping keep alternator whine and static out of the radio. It's a direct-fit replacement for a wide range of 1974-1987 GM vehicles, including the Chevrolet Camaro (1974-1987), Corvette (1974-1979 and 1982), Nova (1974-1979), Monte Carlo (1974-1979 and 1981-1987), Buick Estate Wagon (1974-1977), several Cadillac models (1974), and many GMC and Oldsmobile applications — see the Buyer's Guide tab for the full list.

  • Mylar insulation: high-quality Mylar insulating materials withstand electrostatic stresses and help protect the internal metal foil windings.
  • 100% tested: each unit is tested so the capacitance value meets performance specifications.
  • OEM-style connectors: for precise installation.
  • Heritage: from a manufacturer serving the automotive aftermarket since 1919.

If a failed suppression capacitor is the source of radio interference or static tied to engine speed, this replaces it. Diagnose the cause before replacing, as noise can also come from wiring, grounds, or the alternator itself.

Interchange: G84 · 2001 · U517 · RR170 · 12338666 · 1876154 · RR170SB

This part cross-references / interchanges with the following part numbers:

G84, 2001, U517, RR170, 12338666, 1876154, RR170SB

Frequently Asked Questions

What does this capacitor do?

It's a noise-suppression capacitor that shunts radio-frequency interference from the charging/ignition circuit to ground, helping keep alternator whine and static out of the vehicle's radio.

Will it fit my vehicle?

The RC-3 is a direct-fit replacement for many 1974-1987 GM cars and trucks. Check the Buyer's Guide tab to confirm your exact year, make, and model.

What are signs this part may need replacing?

Static or whine in the radio that changes with engine speed can indicate a failed suppression capacitor. Diagnose the cause first, since wiring, grounds, or the alternator can also cause noise.

What is it made of?

It uses high-quality Mylar insulating materials that withstand electrostatic stresses and help protect the internal metal foil windings, with OEM-style connectors.

Is each unit tested?

Yes. According to the manufacturer, every unit is 100% tested so the capacitance value of the finished product meets performance specifications.

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