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Black rectangular adapter converting 4-pin flat to 13-pin round with dust cover

CARROFIX

CARROFIX USA 4-Way Flat to European 13-Pin Trailer Light Converter towing

SKU CH-04RE-RM3GR

Converts a US 4-way flat plug to a European 13-pin connector with stop-signal separation for towing

  • Compatible vehiclesSUV
  • Key features4 PIN TO 13 PIN
  • Converts US 4-way flat to European 13-pin for trailer compatibility
  • Separates stop signal from two-wire US systems for correct lighting
  • Plug-and-play installation with no extra wiring or adapters needed
  • Dust cover on 13-pin side protects connector when not in use
  • Enables European trailer connection to US vehicles with 4-pole flat connectors

US 4-Way Flat to EU 13-Pin Converter

This CARROFIX adapter converts a US-style 4-way flat vehicle plug to a European 13-pin trailer socket. It separates the combined stop and tail signals found on two-wire US systems so they match the trailer's dedicated circuits. The plug-and-play design requires no extra wiring or tools. A dust cover protects the 13-pin side when not in use.

For US vehicles towing EU trailers

It suits owners of US vehicles with a 4-way flat connector who need to tow a European trailer, caravan, bike carrier or boat trailer fitted with a 13-pin plug. Buyers whose vehicle already has a 13-pin socket or a 7-pin round connector will not need this converter. It also does not address trailers wired for a different regional standard.

Signal separation for two-wire systems

The decisive specification is the built-in function that splits the US combined stop/tail signal into separate circuits for the European 13-pin interface. Without this conversion, brake lights and tail lights would not operate correctly on the trailer. Verify that your vehicle uses the 4-way flat layout before purchasing.

How it compares

Measured against everything we stock in Tow Straps, Hitches & Adapters, at today’s prices. Recalculated every night.

Price $31.99
Pricier than about 60% of the 30 comparable items (median $28.99).

Specifications

Product
Brand nameCARROFIX
Model nameTrailer light converter
Compatibility
Compatible vehiclesSUV

Questions about this item

Will the 13-pin connector need periodic cleaning or replacement?

The included dust cover protects the 13-pin plug when not in use, and the manufacturer states no electrical maintenance is required during operation.

What is the first limitation when towing continuously with this converter?

The converter handles signal separation for the 4-way to 13-pin connection; sustained use is limited by the vehicle and trailer wiring capacity, not the adapter itself.

Does the converter generate heat or draw extra power during all-day towing?

The passive plug-and-play design adds no active electronics, so it produces no measurable heat and draws no power beyond the trailer lighting circuits.

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