Aging battery cables on 2003-2005 5.9L / 6.7L Cummins Dodge/Ram 2500/3500 trucks raise resistance, slow cranking, and create charging headaches. Big7Kits RAMG3-0205-1/0G-5.9-6.7DIESEL is a complete 1/0GA Big 7 battery cable replacement kit sized for this application.

This kit rebuilds the high-current paths between batteries, starter, grounds, and related feeds with labeled, sealed copper cables so you can restore reliable starts and cleaner voltage delivery.

What you get

• Big7Kits complete Big 7 battery cable kit, part RAMG3-0205-1/0G-5.9-6.7DIESEL
• 1/0GA primary cable sizing for this kit
• Fine-strand SAE-approved pure copper cable (not copper-clad aluminum)
• Solid copper ends with electromechanical crimps
• Marine-grade heat shrink (MIL-I-23053/4) and labeled ends
• Military-style corrosion-resistant battery terminals included
• Fitment: 2003-2005 Dodge/Ram 2500/3500 5.9L or 6.7L Cummins (standard dual-battery kit)

Specs

• Part number: RAMG3-0205-1/0G-5.9-6.7DIESEL
• Wire gauge (kit): 1/0GA primary sizing
• Current maker variant reference: RAMG3-0305-1/0G-5.9-6.7DIESEL
• Application: 2003-2005 Dodge/Ram 2500/3500 5.9L or 6.7L Cummins (standard dual-battery kit)
• B- to fender grounds (4GA)
• B- to engine block grounds (1/0 for this kit)
• B- frame grounds (4GA)
• Alternator lead (2GA)
• B+ to starter (1/0 for this kit)
• B+ crossover cable (1/0 for this kit)
• B+ to PDC / fuse-relay box (4GA)
• Fuse block with additional fuses
• 2 sets military-style battery terminals

Verify fitment for your truck before ordering.