This upgraded battery cable kit replaces old worn out battery cables for more power and better performance from your vehicle, with either the 3.8L or the Pentastar 3.6L
What is the "Big 7" Battery Cable Kit
Our "Big 7" kits include the standard "Big 3" cables: alternator output to battery positive, battery negative to frame/body and engine ground to frame body PLUS we add the leads to the starter and the fuse relay box, as well as adding an external fuse to avoid routing the increase in current capacity through the smaller fuse box wiring.
What makes these cables so special?
We're nerds for specs and finer details around here. None of that CCA (copper-clad aluminum) that's used in inferior products, or stereo installations. We only use fine-strand, SAE (Society of Automotive Engineers) approved, pure copper cable. Then using a powerful electromechanical crimping machine, we crimp each solid-copper end, and finally finish the construction by adding a environmental seal made of marine grade heatshrink meeting MIL-I-23053/4. Also included are military style corrosion resistant battery connections and an ANL fuse and holder. To make the entire install simpler, every end will be labeled for ease of installation.
Do I need a bigger alternator to run these cables?
No. Every vehicle can benefit from our "better than factory" cables. The years, along with environmental damage from rain/salt water/corrosion, can greatly impact your electrical system. Our customers have consistently reported that their vehicle starts faster, charges the battery better, and many times cured electrical gremlins that were brought on by compromised wiring.
I've changed my mind! I want to run a bigger alternator!
Perfect! You're probably running a power inverter, a stereo, a winch, an under hood welder, or flux capacitor. These all require more amperage than the stock alternator is capable of providing. Maybe you're not running any of these yet, but considering it, these cables will get you ready!
2GA or 1/0 GA? Which to choose?
As far as 2GA vs 1/0 GA, it's really going to depend on what mods you're going to do to. If you're staying stock, then 2GA is plenty, but if you're looking at modifying it down the road (winches/lights/etc) and want to future proof, then you'd want 1/0 GA.
2/0GA? What's that? That sounds big! Do I need that?
If you like to order the biggest steak on the menu, run 42" Trepadors on your stock axles, or like to flex on your friends, these are for you. You probably don't need them, but we've got them for you.
Materials
Our Big7 Kits are built with 100% fine strand SAE rated pure copper wire and a flexible J1127 jacket. Ends are crimped with a gas-tight electromechanical crimp rated for 700lbs of pull force. Protected by marine grade heatshrink for corrosion resistance.
Kit Includes
This All-In-One Big7 Battery Cable Replacement Kit includes everything you need to replace your old worn out cables and battery terminals. Each kit include vehicle specific replacement wires, battery terminals, heatshield where needed and protective wrapping as needed.
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Jeep Wrangler JK Big 7 Battery Cable Kit (2007-2018)
Overall a very good kit. But the alternator to fuse cable is way to long for a JK, at least for my installation. I think maybe if you just one ended the cable, provide the lug and sleeve for the other end it would be a better product.
M
Marc D.
Supreme Wires
Best upgrade for you Jeep.
J
John W.
GREAT QUALITY!
High quality. They worked great.
W
Wayne S.
GREAT PRODUCT, BUT NOT INSTALLED YET
They look like a great product, shipped out and received quickly. Unfortunately, I will not be installing for a few months.
M
Michael L.
Would recommend
It’s a solid, high quality kit. I just wish I could find a cleaner way to mount the supplied fuse block, but with dual batteries in a jk, real estate is tight. I’d definitely recommend this kit to anyone looking to upgrade their cables.
Full battery cable replacement kits for restored power and increased power capabilities for Jeep, Toyota, Dodge & More!
At Big 7 Kits, we build battery cable replacement kits that are tough, reliable with labeled ends for easy install. Made with premium fine-strand OFC copper wire, heavy-duty crimps, and sealed with marine-grade heat shrink, our kits are built to outlast and out perform. You’ll get everything you need in one kit and a solid warranty to back it all up. It’s power you can trust—built the Big 7 way.
Testimonials
Testimonial
Everything was great. The cables were all labeled clearly, they were the correct lengths, and the terminal ends fit perfectly. The battery terminals are well made, and make disconnecting the cables quick and easy. Overall, a definite improvement over the factory cables and terminals. Great product!
Eric H.
Jeep Cherokee XJ Kit
Testimonial
The ends of each wire being labeled really helped out. Good quality stuff. Seems right. Definitely fixed my original cables that were so corroded the insulation was cracked and falling apart.
Joe A.
Dodge Cummins Gen 3 Kit
Testimonial
I bought the 1/0 GA kit, easy install. Be careful with the plastic white bracket under the the front of engine block (going to starter). Slow and steady. Sturdy kit, well made and easy to install. Give them a call or shoot them an email, the customer service team here is really helpful and will answer your questions. Paul was ready to help!
Liam S.
Toyota 4Runner Gen3 Kit
1 / of3
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