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Alternator Power Cable

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
4.8 Based on 60 Reviews
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United States United States

Another innovative part from ZZ Performance!

I like this product. It ensures that there's constant voltage at the fuse box, which allows all your accessories to work better. I know you could probably do this with five bucks worth of wiring from the local auto parts store, but this is custom made for your W body and fits perfectly. Plus it's still cheap so I definitely recommend it!

Timothy M.
United States United States

Works very well for sure can tell the difference not major but important

Richard M.
United States United States

Pretty good cable

Work good pretty happy overall just wish it was longer

James R.

1st rate @ $13.99

i just installed mine, less than 5 minutes, just as it says...don't know about the heated seats, don't have those,but i'll be hiting the junk yard soon so I'll let you know then, get it you wont be sorry, can't beat the $

A ZZPerformance Customer
Dontay C.
United States United States


It's a better quality and bigger wire than my stock and I notice the boost in power, would definitely recommend this