InstallGear 8 Gauge Power or Ground Wire - 99% Oxygen-Free Copper (OFC) | 8 AWG Wire | 8 Gauge Wire - 25ft Red + 25ft Black | Great for Marine, Speaker, Battery Cables, Power/Ground Wire

(821 Reviews)

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$17.39

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Quantity
(30000 available )

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258 Ratings
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Reviews
  • Chris Wroten

    > 3 day

    Looks good, exactly what I was looking for.

  • Peter from Alberta

    > 3 day

    One reviewer said it does not look like #8 wire. Some stranded wire that is called #8 has less copper in it because of the air spaces between the fine strands. So I took a 5.40 cm length of this wire, stripped the insulation, weighed it on a calibrated scale (3.89 g), and then calculated the volume of copper present in the sample (0.435 cm3). I then calculated the area of a cylinder of solid copper having this volume (8.06 mm2). A wire table shows that a #8 solid conductor has a cross sectional area of 8.37 mm2, so this wire has almost as much copper as a #8 solid wire. Still it is much better than a #9 and far, far better than #10.

  • Rus Healy

    > 3 day

    I use this for connecting a 60-A battery charger to a number of different batteries. The material is really nice to handle and work with--compliant and stays put. I like it a lot.

  • David Drake

    13-06-2025

    If your running a high power subwoofer you should not be using small gauge speaker wire. This stuff is very flexible and it is pure ofc. I highly recommend this for your amp to subwoofer applications.

  • Scott Bell

    > 3 day

    This wire is a pleasure to work with. Ive been using it to do a major overhaul on an RV and it has been awesome. It is pliable and easy to use. Id buy it again in a heartbeat.

  • Andrew

    Greater than one week

    Very flexible for the size of the wire for sure. Wire is oversized 1/0 thats always a plus for sure. Did all the wiring in my 2005 stratus sxt sedan from front batter to second battery in the trunk running a 250a fuse close to frin battery and one right before connecting to second battery going from there to a 3rd 250a fuse before going to my Sundown Audio SIA2500d amp. Had just about a 2 wire left and its a long car. Run from battery to battery is about 17 alone. Woukd recomend for sure.

  • Drew

    Greater than one week

    I use these 8 gauge cables in my solar system and they work great. They are very flexible which made them easy to route. I installed MC-4 connectors on the ends and that was easy too. Im getting good power transfer across the entire length of what I bought (25). Overall Im very happy with them and I would definitely buy them again.

  • shante f.

    10-06-2025

    This wire is great has a good weight to it will definitely buy again

  • Zebra Hoedown Throwdown

    > 3 day

    Thought this was good quality wire, covering feels solid if soft, wire appears to be good quality, then I left it in the sun for ONE DAY, and the sun bleached it almost entirely white. This complete lack of UV resistance in the wire coating makes me doubt the quality of it and ability to survive in a hot car. The coating turned into a moist Twizzler with very little provocation.

  • Joseph

    > 3 day

    Very flexible, perfect for car audio

8 gauge red black ofc power ground wire8 gauge red black ofc power ground wire

Features of this 8 Gauge OFC Power/Ground Wire

  • 25-FEET (7.62m) RED + 25-FEET (7.62m) BLACK / 8 GAUGE POWER/GROUND WIRE - The lower the gauge number, the thicker the wire. Thicker wire presents less resistance to current flow.
  • OXYGEN-FREE COPPER (OFC) - Oxygen Free Copper wiring provides a superior electrical conductor to aluminum because it does not expand or contract with heat and can carry a higher current load.
  • RUGGED PVC JACKET - Allows free, wide and seamless adjustment of the required physical properties of this wire such as flexibility, elasticity, and impact resistance.
  • EASY POLARITY IDENTIFICATION - This two color jackets allow for easy polarity identification. Making a polarity mistake could be damaging to your audio equipment.
  • SOFT TOUCH JACKET - The jacket on our cable is designed with the installer in mind. The flexibility of this jacket allows for easy routing and has a low memory.

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