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Rockford Fosgate RFK8

8-gauge amplifier power wiring kit

Item # 575RFK8

In stock

Other options

About the Rockford Fosgate RFK8

This wiring kit does not include speaker wire or patch cables. You will need to purchase those separately, in order to complete your amplifier installation.

Your amp needs big power wires in order to deliver top performance to your sound system. Rockford Fosgate's RFK8 amplifier power wiring kit supplies everything you'll need to send power to amplifiers with fuse ratings of up to 60 amperes. Rockford Fosgate makes the 8-gauge cable from 100% pure crystal-oxygen free copper wire so you can count on maximum signal transfer.

Product highlights:

  • amplifier wiring kit
  • cables meet or exceed the American Wire Gauge specifications and requirements
  • 17 feet of 8-gauge power cable
  • 3 feet of 8-gauge ground cable
  • 20 feet of 18-gauge turn-on lead wire
  • AGU fuse holder and 60-amp fuse
  • assortment of wire termination hardware and cable ties
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # RFK8

What's in the box:

  • One 17' Power cable (8-gauge) in a red translucent jacket (has an in-line 60A fuse/fuse holder and a ring terminal on the battery end)
  • 3' Ground cable (8-gauge) in a translucent gray jacket (with a ring terminal on one end)
  • 20' Turn-on lead in a blue jacket
  • Ten 4" wire ties
  • 1 Plastic grommet
  • 3 Plastic butt connectors
  • Female quick slide connector
  • Male quick slide connector
  • Ring terminal
  • Small red rubber boot
  • Large black rubber boot

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More details on the Rockford Fosgate RFK8

Mark G.
The Rockford Fosgate RFK8 replaces these items:

Product Research


General Overview: This is a single amplifier wiring kit that includes the power and ground cables, turn-on lead, and accessories required to install one amplifier. Speaker wire and RCA cables are sold separately.

High Strand Power/Ground Cable: The power and ground cable are 100% Pure Crystal-Oxygen Free Copper (PC-OFC) and meet or exceed AWG (American Wire Gauge) requirements.

In-line Fuse Holder: The included in-line, water-tight fuse holder attached to the power cable comes with a 60-amp AGU-type fuse.

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Customer Q&A

4 questions already asked

What size flex loom tubing? 1/2 inch or 3/8 inch?
[ P  Dec 15, 2020 ]
2 answers
[ WILLIE  Dec 15, 2020 ]
I no longer own this car [where the wiring was installed] but I believe that it was 3/8.
[ Peter  Dec 15, 2020 ]
How many strands are in the power wire and are they solid copper or CCA?
[ Gordon  Jun 08, 2020 ]
1 answer
We don't have the exact strand count but the power and ground cable are 100% Pure Crystal-Oxygen Free Copper (PC-OFC) and meet or exceed AWG (American Wire Gauge) requirements.
[ Cosmo  Jun 24, 2020 ]  Staff
Is the fuse holder waterproof?
[ Joe Schmoe  Mar 31, 2019 ]
2 answers
I'd say it's water resistant but I wouldn't submerge it
[ Anthony  Apr 01, 2019 ]
Mine has been mounted under my hood for about 2 years and I've had no issues. I don't know that I would mount it completely in the weather but it does have a rubber o-ring where the holder screws together.
[ SUE  Mar 31, 2019 ]

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Looking for more?

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Rockford Fosgate RFK8i
8-gauge amplifier power and signal wiring kit
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179 reviews
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Get power and signal cables in one kit:

The Rockford Fosgate RFK8i offers these features:
  • one 20-foot twisted pair RCA patch cable