Cummins
Shop All
Results are being filtered for your chosen fitment.
Trending Products
Recommended Products
Need Help Choosing the Right Parts?
Explore expert diesel guides, videos, and tips from the Diesel Power Products team.
Recent Blogs
Popular Videos
Join the Diesel Power Products Community
Explore expert diesel guides, videos, and tips from the Diesel Power Products team.
Community Highlights
Description
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.