Jeep Grand Cherokee WJ Big 7 Battery Cable Kit (1999–2005)
Your WJ Grand Cherokee is a capable, classic SUV, but the factory wiring wasn’t designed to handle modern electrical loads like winches, off-road lights, or aftermarket accessories. Voltage drops, dim lights, and sluggish starts are all signs it’s time for an upgrade — the Big 7 Kit has you covered.
What’s Inside the Big 7 Kit?
You know the “Big 3” — alternator → battery, battery → chassis, engine → chassis. We go beyond. The Big 7 Kit adds upgraded runs to the starter and fuse relay box, all routed cleanly with labeled cables for a fast, frustration-free installation.
Built for Trail Abuse
Available in 2 GA, 4 GA, or 1/0 GA to match your build’s power needs
SAE-grade pure copper cable — maximum conductivity, no copper-clad shortcuts
Solid-copper, machine-crimped terminals, sealed with marine-grade heat-shrink
Corrosion-resistant battery clamps built for mud, water, and heat
Clearly labeled cables make installation clean and organized
Ready for Grand Cherokee Duty
This Big 7 Kit is engineered specifically for 1999–2005 Jeep Grand Cherokee WJ models, delivering reliable voltage, faster starts, and consistent accessory performance whether you’re towing, off-roading, or overlanding.
Proudly built in the Pacific Northwest by off-roaders who use their rigs as hard as you do.
