Skip to content

Welcome to our store

  • Home
  • Catalog
  • Contact
Apex Ram Performance - Home
  • Home
  • Catalog
  • Contact
  • Account

    Big 3 / Big 7 Battery Cable Upgrade Guide by Vehicle

    Upgrading your battery cables (the "Big 3" or "Big 7") improves cranking power, charging efficiency, and electrical reliability — especially on diesel trucks and vehicles running aftermarket electronics. Find your exact vehicle and generation below to see the matching kit.

    Dodge / RAM Cummins Diesel

    • 2nd Gen Cummins (1994-2002)
    • 3rd Gen Cummins (2003-2009)
    • 4th Gen Cummins (2010-2018)

    Ford Powerstroke Diesel

    • 7.3L OBS (1990-1997)
    • 7.3L (1999-2003)
    • 6.0L (2003-2007)
    • 6.4L (2008-2010)
    • 6.7L (2011-2016)
    • 6.7L (2017-2021)

    Jeep

    • Jeep CJ
    • Cherokee SJ (1974-1983)
    • Wrangler YJ (1986-1995)
    • Comanche MJ (1987-1992)
    • Cherokee XJ (1987-2001)
    • Grand Cherokee ZJ (1993-1998)
    • Grand Cherokee WJ (1999-2005)
    • Liberty KJ (2002-2007)
    • Commander XK (2005-2010)
    • Grand Cherokee WK (2005-2010)
    • Wrangler TJ / LJ (1997-2006)
    • Wrangler JK (2007-2018)
    • Wrangler JL (2018-2024)
    • Gladiator JT (2020-2024)

    Toyota

    • 4Runner Gen 1 (1984-1989)
    • 4Runner Gen 2 (1990-1995)
    • 4Runner Gen 3 (1996-2002)
    • 4Runner Gen 4 (2003-2009)
    • 4Runner Gen 5 (2010-2024)
    • Tacoma Gen 1 (1995-2004)
    • Tacoma Gen 2 (2005-2015)
    • Tacoma Gen 3 (2016-2021)
    • Tundra Gen 1 (2000-2006)
    • Tundra Gen 2 (2007-2022)
    • Sequoia Gen 1 (2001-2007)
    • FJ Cruiser (2007-2014)
    • Land Cruiser FZJ80 (1993-1997)

    Not sure which gauge you need?

    Use code APEXPARTZ10 for 10% off your first upgrade kit.

    Join our email list

    Get exclusive deals and early access to new products.

    © 2026 Apex Ram Performance, Powered by Shopify
    • Privacy policy
    • Refund policy
    • Terms of service
    • Contact information
    • Shipping policy
    • Legal notice

    Your cart is empty

    Have an account? Log in to check out faster.

    Continue shopping

    Search

    Products

    • 14111CBBLK
      14111CBBLK

      14111CBBLK

      $2,799.99
      Regular price  $3,051.99 Sale price  $2,799.99
    • 14139CBBLK
      14139CBBLK

      14139CBBLK

      $2,879.99
      Regular price  $3,138.99 Sale price  $2,879.99
    • 14469CB4BLK
      14469CB4BLK

      14469CB4BLK

      $2,839.99
      Regular price  $3,095.99 Sale price  $2,839.99
    • 14469CB6BLK
      14469CB6BLK

      14469CB6BLK

      $2,833.95
      Regular price  $2,862.99 Sale price  $2,833.95