Your TJ or LJ Wrangler is one of the most capable and beloved Jeeps ever built. But the stock wiring? Let’s just say it wasn’t designed for today’s demands — winches, auxiliary lighting, onboard air, fridges, or sound systems. Weak starts, voltage drops, and dim lights are your cue — it’s time to upgrade to the Big 7 Kit.
What’s Inside the Big 7 Kit?
You know the “Big 3” — alternator → battery, battery → chassis, engine → chassis. We take it further. The Big 7 Kit adds upgraded runs to the starter and fuse relay box, all precision-made and labeled for clean routing and frustration-free installation.
Built for Trail Abuse
Available in 2 GA, 4 GA, 1/0 GA, or 2/0 GA to match your Jeep’s setup and power needs
SAE-grade pure copper cable — full conductivity, no copper-clad shortcuts
Solid-copper, machine-crimped terminals, sealed with marine-grade heat-shrink
Corrosion-resistant battery clamps built to handle heat, mud, and moisture
Clearly labeled cables for an organized, easy installation
Ready for Jeep Duty
Engineered specifically for 1997–2006 Jeep Wrangler TJ and LJ models, this Big 7 Kit delivers consistent voltage, quicker starts, and reliable power for all your trail and overland accessories.
Proudly built in the Pacific Northwest by off-roaders who live the life their products are made for.
