SKU #: BK-RAMG3-0205-1/0G-5.9-6.7DIESEL MPN #: RAMG3-0205-1/0G-5.9-6.7DIESEL

Big 7 Kits Battery Cable Kit 3rd Gen 03-09 Ram 2500/3500 5.9L/6.7L Cummins

$310.50

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Big 7 Kits Battery Cable Kit 3rd Gen for 03-09 Ram 2500 and 3500 5.9L and 6.7L Cummins

Description

Restore and upgrade the electrical performance of your Dodge 5.9L / 6.7L Cummins with the Big 7 Battery Cable Kit. Designed specifically for 3rd Gen Cummins trucks, this complete replacement system eliminates weak, corroded factory wiring and delivers improved starting power, charging efficiency, and overall reliability. Each kit is constructed from 100% fine-strand oxygen-free copper wire with a durable SAE-rated jacket, ensuring maximum conductivity and long-term durability. Heavy-duty terminals are secured using high-strength, gas-tight crimps and sealed with marine-grade heat shrink to protect against corrosion and harsh conditions. Whether you're fixing voltage drop issues or upgrading for added electrical demand such as lighting, winches, or performance accessories, this all-in-one Big 7 system provides a noticeable improvement in power delivery and consistency over factory cables. AVAILABLE OPTIONS: Model Year Configuration: 2003–2005: 5.9L Cummins early 3rd Gen configuration 2006–2009: Late 5.9L and 6.7L Cummins (may require starter connection style selection) Wire Gauge: 1/0 Gauge: Ideal for stock or lightly modified trucks 2/0 Gauge: Recommended for high electrical demand, cold climates, or future upgrades Designed as a direct-fit, vehicle-specific solution, the Big 7 Battery Cable Kit replaces aging factory wiring with a high-performance system built to outlast and outperform OEM components.

AVAILABLE OPTIONS:

Model Year Configuration:
- 2003–2005: 5.9L Cummins early 3rd Gen configuration
- 2006–2009: Late 5.9L and 6.7L Cummins (may require starter connection style selection)
Wire Gauge:
- 1/0 Gauge: Ideal for stock or lightly modified trucks
- 2/0 Gauge: Recommended for high electrical demand, cold climates, or future upgrades

Designed as a direct-fit, vehicle-specific solution, the Big 7 Battery Cable Kit replaces aging factory wiring with a high-performance system built to outlast and outperform OEM components.

Vehicle Fitment

2003-2009 Ram 2500/3500 5.9L/6.7L Cummins

WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov

FEATURES & BENEFITS:

Complete “Big 7” cable upgrade for improved electrical flow and reliability
100% fine-strand oxygen-free copper for maximum conductivity
Heavy-duty crimped terminals with high pull-strength durability
Marine-grade heat shrink for corrosion resistance
Improves starting performance and charging system efficiency
Reduces voltage drop under load and supports aftermarket electrical accessories
Pre-labeled cable ends for straightforward installation

KIT CONTENTS:

Battery-to-chassis, engine, and frame ground cables
Alternator charge lead
Battery positive cables (starter, crossover, and power distribution)
Heavy-duty military-style battery terminals
Inline fuse block and protective wiring components

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.