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EFX Crimp-on Ring Terminals

For amplifier power and ground wires (2 pair, 4-ga. 5/16" hole)

Item # 142X2RTC4

California customers:
Please click here for your Proposition 65 warning.

Item # 142X2RTC4

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About the EFX Crimp-on Ring Terminals

Make connections

Use a pair of these EFX crimp-on ring terminals to make power and ground connections for your amplifier. They're a great way to make tight and secure electrical connections, ensuring trouble-free performance for years to come. Warranty: 1 year.

What's in the box:

  • 4 Crimp-on ring terminals for 4-Gauge wire
  • 2 Red insulators
  • 2 Black insulators

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More details on the EFX Crimp-on Ring Terminals

Mark G.
The EFX Crimp-on Ring Terminals replaces these items:

Product Research


Overview: The X2RTC4-4 is two pair of nickel plated terminals ring terminals for your power cables. The terminals accommodate 4-gauge wire. Two terminals have red insulator boots and two have black insulator boots.

Crimp Connector: The ring terminals are crimped onto the end of the power wires. Because of the large diameter, a heavy duty crimping tool is recommended to make a secure crimp. You should strip the wire approximately ½" before inserting into the terminal.


  • Ring Outer Diameter: 0.660"
  • Ring Inner Diameter: 0.317" (5/16")
  • Ring Thickness: 0.05"
  • Terminal Length: 1.315" (1.6" including boot)

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