Alternator Power Cable


43 reviews

This product is currently sold out.

Wire Harnesses & Adapters - Alternator Power Cable
Wire Harnesses & Adapters - Alternator Power Cable

The stock wire goes from the alternator to the starter with a 10' 8 gauge wire and then from there to the battery through another 8 gauge wire, then from the battery to the top of the under hood fuse box. Our alternator rewire goes from the back of the alternator to the power connector on the under hood fuse box with a shorter larger diameter wire. It can safely be run with the OEM one still connected.

  • More power to the fuel pump 
  • Brighter head lights 
  • Better ignition performance 
  • Better heated seat performance
  • Improve rear defrost performance 
  • Less alternator draw by more efficient power delivery to battery 
  • Better fuel economy 
  • Installs in 5 minutes
  • 4 AWG flexible cable replaces the much longer current choking 8AWG factory wire 
  • New protector boot included to reduce the chance of shorting at the alternator stud.

Works well along with our Alternator Voltage Booster.

This item and all electrical items are non-returnable. 

Connects to top of fuse box and output post on alternator. Factory wires stay in place. 

Monte Carlo/Impala Note: the terminal on the fuse box side must be drilled out to match the larger fuse box stud. 


Wire Harnesses & Adapters - Alternator Power Cable
Wire Harnesses & Adapters - Alternator Power Cable
Customer Reviews
4.9 Based on 43 Reviews
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Dennis M.
United States United States
Alternator Power Cable

Very easy to install. I combined this cable with the Alternator Voltage Booster and my dash lights are brighter and my tip-in throttle responds is better as well. Thank you ZZP.

Brandon H.
United States United States
06 Grand Prix GT

Overall great product for the money. Noticed a difference in the brightness of my lights among other things mentioned in the description of the product. Took about 5 - 10 min to install and worth it for sure. Another great product from ZZP.

ZZPerformance Alternator Power Cable ReviewZZPerformance Alternator Power Cable Review
Thomas B.
United States United States
Easy to install

Quick install, and pretty quick delivery once it was shipped. I had a question regarding orientation when installing that was never answered, but other than that, no complaints. Not sure it has made a huge voltage improvement, but it was more of a "just in case" type of purchase anyway.

United States United States
Simple and effective

Very simple install, just unplug the battery and take off two bolts, put the cord on and put everything back together and you're good to go! Definite boost in the audio volume and window speed, other claims might be happening as well but its hard to tell. All in all definitely worth the money, super simple install and really makes a difference.

ZZPerformance Alternator Power Cable Review
Willie W.
United States United States
What a difference

Works very well u I can notice a difference rite off the bat, idk why gm wouldn't do this when they made the car but anyway sunroof opens and closes alot faster, my windows go up and down alot faster as well, this thing definitely does what its supposed to do and more I'd reccomend it to anyone with a widebody monte carlo definitely worth the little money zzperformance is asking for it and it's one of a kind thanks zzperformance forever a customer for my 3800.