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SKU #: BK-JJL-30D-2G-XXRKS
MPN #: JJL-30D-2G-XXRKS
Big 7 Kits Battery Cable Kit 20-23 Jeep Wrangler JL 3.0L EcoDiesel
Description
Overview
Restore dependable electrical performance in your Jeep Gladiator JT equipped with the 3.0L EcoDiesel using the Big 7 Battery Cable Kit. This vehicle-specific replacement system upgrades aging or undersized factory cables to help reduce voltage drop, improve starting and charging performance, and support additional electrical accessories.
The kit is constructed from 100% fine-strand, SAE-rated pure copper cable with a flexible J1127 jacket. Solid-copper terminals are secured with gas-tight electromechanical crimps rated for up to 700 pounds of pull force and sealed with marine-grade heat shrink for protection against moisture and corrosion.
The Big 7 system upgrades the primary charging, starting, and grounding connections, including the alternator output, battery grounds, starter lead, and fuse-relay box connection. An external ANL fuse and holder, corrosion-resistant military-style battery terminals, and clearly labeled cable ends are included to simplify installation.
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About WrenchConnected
WrenchConnected is an independent installation marketplace operating in partnership with Diesel Power Products.
How it works
After checkout, we route your vehicle info and part SKU to verified installation shops near you. Local installers review the job and submit competitive bids; you pick the shop you want based on price, reviews, and availability. Your name and email stay private until you select an installer.
Pricing
You pay for the bid from your preferred shop. The full amount is shown before you confirm — installers cannot add charges without your written consent. Payments are processed securely by Stripe.
Your privacy
During bidding, shops see only your service ZIP code, vehicle year/make/model, and the part SKU — not your name, email, or address. Only the shop you select receives your contact details after payment. We never sell your personal information.
More detail at wrenchconnected.com.
The Big 7 Battery Cable Kit is a vehicle-specific replacement system that upgrades factory battery cables to help reduce voltage drop and improve starting and charging performance.
- Fits
- 2020-2023 Jeep Wrangler JL 3.0L EcoDiesel
- Brand
- Big 7 Kits
- Best for
- Restoring and upgrading electrical performance on a diesel Jeep
- Key features
- 100% fine-strand SAE-rated pure copper cable
- Flexible SAE J1127 cable jacket
- Gas-tight solid-copper terminal crimps
- Marine-grade heat-shrink protection
- Includes corrosion-resistant military-style battery terminals
- Includes an external MEGA fuse and fuse holder
- Clearly labeled, vehicle-specific cables
- Key specs
- 700 pounds of pull force
FEATURES & BENEFITS:
- Designed for Jeep Wrangler JL models with the 3.0L EcoDiesel
- 100% fine-strand SAE-rated pure copper cable
- Flexible SAE J1127 cable jacket
- Gas-tight solid-copper terminal crimps
- Marine-grade heat-shrink protection
- Includes corrosion-resistant military-style battery terminals
- Includes an external MEGA fuse and fuse holder
- Clearly labeled, vehicle-specific cables
About Big 7 Kits
Big 7 Kits is a U.S.-based manufacturer specializing in high-quality battery cable upgrade kits designed to restore and improve vehicle electrical performance. What began as a solution to common starting and voltage issues has grown into a trusted brand serving enthusiasts and vehicle owners nationwide.
Built on a foundation of durability and real-world performance, each kit is engineered using premium materials such as fine-strand oxygen-free copper wiring, heavy-duty crimps, and marine-grade heat shrink. The brand name is inspired by its comprehensive “Big 7” cable upgrade system, delivering complete, easy-to-install solutions that outperform factory components.
With roots in the enthusiast community, Big 7 Kits continues to expand its lineup across platforms including Jeep, Ford Powerstroke, and Dodge Cummins, while maintaining a focus on American craftsmanship, reliability, and practical design.
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