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47515
4 Flat to 5 Flat adapter

Installation Instructions Installation Instructions

Some boat trailers have 5 Flat connectors on them to activate the surge brake. The 47515 4 Flat to 5 Flat adapter allows you to add the reverse wire to your existing 4 Flat that allows the surge brake to release.

  • Retrofits existing 4 Wire Flat to a 5 Wire Flat
  • For use with marine trailers equipped with surge brakes
  • Weatherproof splice connections; bullet terminal and splice connector included
  • Impact and corrosion resistant
  • 90 Day Warranty From The Date Of Original Purchase
4 Flat to 5 Flat adapter

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