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Universal Fridge Power Trailer Battery Charging Harness WH3-G13

In stock Same day dispatch

Wiring kit specifics:

Fridge / trailer battery charging harness

This kit enables your trailer fridge or battery to be charged through the trailer harness pins, no need for additional unsightly wiring.

This kit is specifically designed to add Constant and Ignition power to pins 8 and 9 in a 12 pin plat configuration.

Protected fused circuit with easy connect ends.

Wiring kit specifics:

  •  Part number:WH3-G13
  •  Number of pins:works with 13-pin and 7-pin wiring kit
  •  Wiring kit:universal
  •  Coding / activation:not required


  • Smart trailer battery charging supported (ICM required, not included)
  • Provides 12V constant supply on the trailer plug (eg. for the fridge)
  • Provides maximum 15A power for trailer battery charging
  • Works with the 7-Pin flat trailer plug and 13-Pin round euro trailer plug.
  • Set of supplementary wires for socket G13-8 as "extension" to "full" functionality G13.

NOTE: Steering circuit for trailer battery charging must be realized by yourself. Professional installation advised.

Scope of delivery:

  • 1 x Supplementary wire harness to the socket G13 (pins 9-13)
  • 1x Supplementary power wire with fuse holder and fuse
More Information
OEM Part Number WH3-G13
Condition Brand new
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