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Black round 7-pin plug with dust-capped flat 4-pin socket

CARROFIX

CARROFIX European 7-Way Round to US 4-Way Flat Towing Adapter

SKU CH-TXDF-ME2JV

Converts a European 7-pin round vehicle socket to a US 4-pin flat trailer plug for basic lighting functions

  • Fit typeAll
  • Compatible vehiclesTruck with European style 7 way
  • Key featuresEuropean 7 pin to US 4 flat
  • Connects European 7-pin vehicle to US 4-pin trailer
  • Simple plug-in installation with no new wiring required
  • Dust cover protects 4-pin plug when not in use
  • Transfers left/right turn signals and taillight power
  • Maps Euro ground, tail, turn pins to US flat connector

European 7-Way to US 4-Flat Adapter

This CARROFIX adapter connects a European 7-pin round vehicle socket to a US standard 4-pin flat trailer plug. It transmits ground, left and right tail lights, plus left and right turn signals. Installation is a simple plug-in process with no wiring modifications required. A dust cover protects the 4-pin side when not in use.

For Vehicles With Euro 7-Pin Sockets

Suits drivers towing a US-spec trailer behind a truck or car fitted with a European 7-way round outlet. It only carries basic lighting functions, so buyers who need brake-light output, reverse lights, auxiliary power or electric brake control should look at a different adapter. The single-function design cannot support those additional circuits.

Signal Mapping: Five Euro Pins to Four US Pins

The adapter routes the European ground, left tail, right tail, left turn and right turn pins to the US ground, taillight, left turn and right turn terminals. This fixed mapping decides whether the trailer lights will operate correctly for your specific towing setup. Verify your vehicle and trailer wiring match this scheme before purchasing.

How it compares

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

Price $16.99
Cheaper than about 80% of the 30 comparable items (median $28.99).

Specifications

Product
Brand nameCARROFIX
Model nameTrailer connector
Compatibility
Fit typeAll
Compatible vehiclesTruck with European style 7 way

Questions about this item

Does my truck need a European-style 7-way round receptacle for this adapter to plug in?

Yes, the adapter’s vehicle-end connector is a European 7-way round pin that must plug into an existing 7-way round receptacle on the truck.

Will the adapter pass through brake-light or reverse-light signals from my older trailer wiring?

No, the adapter only transfers ground, left/right turn signals and taillights; brake and reverse circuits are not wired through the 4-flat output.

How can I verify the adapter is working correctly after I plug it in?

With the vehicle running, activate each turn signal and the taillights; the corresponding trailer lights should illuminate, confirming the ground, left-turn, right-turn and tail circuits are live.

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