Rockford Fosgate RFDB4 4 AWG Positive/Negative Battery Terminal

4 AWG Battery Terminal with Integrated 2-Port Distribution Block 2× 4 AWG or 8 AWG. Positive or Negative. Custom Tooled Solid Brass, HPP Platinum Finish.

The Rockford Fosgate RFDB4 is a battery terminal with a built-in 2-port distribution block the 4 AWG counterpart to the RFDB1. Replaces the stock battery terminal and provides two direct wiring ports at the battery post, each accepting 4 AWG or 8 AWG wire. Usable as positive or negative terminal with the included sizing ring. Custom-tooled solid brass with HPP platinum finish.

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Key Specifications

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Features & Benefits

• 2-Port Distribution at the Battery Post — Two 4 AWG or 8 AWG wiring ports directly at the battery terminal — suitable for smaller systems or secondary ground/power runs without a separate distribution block.
• Positive or Negative — Sizing Ring Included — Same post sizing ring system as RFDB1 — one terminal suits both battery posts.
• Custom Tooled Solid Brass + HPP Platinum — Corrosion-resistant high-current construction.

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FAQs

How does the RFDB4 differ from the RFDB1? The RFDB1 has four ports (two at 1/0 or 4 AWG, two at 8 AWG) for high-power multi-amplifier systems. The RFDB4 has two ports (both 4 or 8 AWG) — suited to smaller systems or as a secondary terminal for ground distribution.

Does this replace my existing battery terminal? Yes — clamps directly onto the battery post.

Sold as individual unit? Yes — two required for complete positive and negative installation.