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Crutchfield Black Ground Wire

Available in 4 different sizes — priced by the foot (4-gauge)

Item # 007CPWB4

If you're a do-it-yourselfer installing an amplifier in a vehicle, Crutchfield Ground Wire will transfer energy...

If you're a do-it-yourselfer installing an amplifier in a vehicle, Crutchfield Ground Wire will transfer energy...

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

Top seller

Item # 007CPWB4

In stock
$2.99 ft

Other options

About the Crutchfield Black Ground Wire

Solid ground for power to flow

If you're a do-it-yourselfer installing an amplifier in a vehicle, Crutchfield Ground Wire will transfer energy efficiently, safely, economically, and get peak performance out of all your gear.

Solid ground for power to flow

If you're a do-it-yourselfer installing an amplifier in a vehicle, Crutchfield Ground Wire will transfer energy efficiently, safely, economically, and get peak performance out of all your gear.

Note: Crutchfield ground wire consists of stranded copper wire that has been tinned to help prevent oxidation that could decrease its conductivity.

CTA-2015 Compliant

Crutchfield wire

Crutchfield wire is made of oxygen-free copper, with no impurities that could raise its resistance to a signal's flow or add interference. Crutchfield wire meets all Consumer Technology Association (CTA-2015) standards for size, resistance, and insulation quality. Warranty: 1 year.

This wire is sold by the foot — enter the number of feet desired in the "quantity" field of your shopping cart.

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What's in the box:

  • 4 AWG ground wire with black translucent jacket (sold by the foot)
MFR #CPWB4-250

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Crutchfield Black Ground Wire reviews

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More details on the Crutchfield Black Ground Wire

Mark G.

Product Research

Features & Dimensions

Crutchfield Ground Wire:

  • Gauge: 4 AWG
  • Wire Construction: Oxygen Free Copper (1862 strands)
  • Diameter: 0.395"
  • Length: sold by the foot and cut to order

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Customer Q&A

3 questions already asked

Q
What is the bare wire diameter of 1/0 gauge without outer sheathing? Is the 0.625" with sheathing?
[ Paul  Jun 03, 2019 ]
2 answers
A
Yes the .625" is the sheathing diameter. Bare wire directly where it exits the sheathing measured about .388" on the piece I measured. With that said, about a half inch past the sheathing, it measured about .525". The individual strands are tinned, there's a bunch of information for that on the web, but the important bit is that it tends to "fluff" out. If you check the AWG wire diameter table on Wikipedia this wire actually falls between double ought and triple out wire diameters. I had difficulty soldering it in the standard 1/0 connector and have been thinking about redoing it with a 2/0 connector. I hope that helps.
[ Ronald  Jun 10, 2019 ]
A
the inner wire is 1/2" so with the sheathing yes I'm sure its .625"
[ jonathon landon  Jun 10, 2019 ]
Q
Why is the black ground wire tinned but the red power wire does not appear to be tinned?
[ Stevonavich  Oct 12, 2020 ]
2 answers
A
Becuz of the jacket of the wire. I asked them this before and they said with time the copper caused the jacket to change color so they tinned it. Still the same great ofc copper
[ Alfredo  Oct 27, 2020 ]
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer.
[ Krissy  Oct 27, 2020 ]  Staff
Q
What is the ground cable tinned with?
[ William  Aug 15, 2019 ]
1 answer
A
Hey William, the wire is coated with Tin (Sn), the metal, to help prevent corrosion and oxidation.
[ Calvin  Aug 22, 2019 ]  Staff

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