Skip Navigation

Rockford Fosgate RFK8

8-gauge amplifier power wiring kit

Item #: 575RFK8

In Stock

9 Reviews | Ask Questions

Your price: $49.99 Earn up to 50 Rewards points

Add to Cart

+ Add to wishlist + Email me alerts for this product

View all associated offers

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

Rockford Fosgate RFK8 Reviews

Average Customer Review:

9 Reviews

Rockford Fosgate RFK8

Written by: Anonymous from Wisconsin on November 15, 2015

Crutchfield Customer Review (What's this?)

Good product, easy to install and look clean.



Rockford Fosgate Amp kit

Written by: AG from Texas on October 4, 2015

Crutchfield Customer Review (What's this?)

This kit was exactly what I need to replace my old amp kit. The length was perfect for my 2010 Chevy Avalanche. I even notice my subs hitting harder then before. The quality is great. I recommend this product . I rate this product 5 stars!

Pros: More juice to amp resulting in way better performance from my subwoofers.

Cons: None

Great product

Written by: Teka from Texas on February 19, 2015

Crutchfield Customer Review (What's this?)

Great wire, great quality, easy to strip and install.

Pros: good stuff.


good kit could be better

Written by: Mark W from Wichita, KS on September 30, 2014

Crutchfield Customer Review (What's this?)

good kit. cables were long enough to reach amp in trunk, but the provided connectors were too wide for the amp I purchased. so I had to go to a local stereo shop to get connectors that would work.

Pros: good kit. cables were long enough for my job

Cons: connectors provided were too wide for amp that was purchased

Does not come with everything you need.

Written by: Commata from Michigan on August 5, 2014

Crutchfield Customer Review (What's this?)

The components that came with the wiring kit where made of quality products but did not include RCA cables so i had to make an extra trip to get a set, so i would recommend buying a kit that includes everything you need.

Pros: Quality Product

Cons: Missing RCA cables

Great Product

Written by: djstaab from Gainesville, FL on February 19, 2014

Crutchfield Customer Review (What's this?)

High end kit at a decent price. Only problem is the kit doesn't come with RCA patch cables (WHY?). I didn't notice this and had to buy some inferior ones locally to continue my install.

Pros: High end

Cons: No RCA's.

RF amp cables

Written by: coachts from Granada Hills, CA on January 14, 2014

Crutchfield Customer Review (What's this?)

Excellent quality cable that is extremely thick and heavy duty. It was plenty long enough to run from front to back of my Hummer. Great fuse enclosure.

Pros: Excellent quality Thick protective coating Great fuse enclosure and included fuse.

Cons: No RCA sound cable for subwoofer

Wiring kit

Written by: DS from Chagrin falls, Oh on January 2, 2014

Crutchfield Customer Review (What's this?)

have used several of these for other unit installations, good quality material.

Pros: good quality

Cons: price, I mean its just short lengths of wire for crying out loud.

Worth the extra money

Written by: johnnybgood from NW Iowa on November 7, 2011

Crutchfield Customer Review (What's this?)

This kit costs a little extra, but is well worth the cost. There's a reason some kits are $20 and others are $50. You get what you pay for and it doesn't make sense to short change your several hundred or thousand dollar system for the sake of $20-$30.

Pros: High quality components

Cons: Cost

Hands-on research

What's in the box?

Download owner's manual

  • 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

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.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Customer Q&A

Crutchfield asked  
Why did you buy this?

This is the only right way to hook up an amp [ Janusz  Feb 01, 2016 ]
the tech and the name [ Anita  Jan 23, 2016 ]
Rockford Fosgate makes quality products and you can't go wrong with a Rockford amp. [ STEVEN  Dec 18, 2015 ]
Quality of fuse and 8-gauge wiring combination. Don't need the rest of this package. [ Robert R  Dec 06, 2015 ]

Looking for more? Check out the next model in this lineup.

Rockford Fosgate RFK8I

Get power and signal cables in one kit:

The Rockford Fosgate RFK8i offers these features:

  • one 20-foot twisted pair RCA patch cable