13 TO 7 PIN LIGHT ADAPTOR - CONVERTER FOR CAR, TRAILER, VAN, CARAVAN, HORSEBOX. For use where the vehicle has a 13 pin socket and the trailer has a 7 pin plug. Converts 13 pin Socket to 7 pin socket. Quality plastic construction.
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Bicycle Towing Hitch Adapter Bicycle Trailer Coupling Bike Trailer Hitch Connector Coupler Bicycle Adapter For Child Pet Trailer
Aliexpress UK
7 Pin to 13 Pin Adaptor/ Converter for Car, Trailer, Horsebox Lights & Towing 12v, 12N. Used where the Car has a 7 pin socket and the trailer has a 13 pin plug. Converts 7 pin car socket to a 13 pin socket.
eBay
Cup Mount Bike Trailer Hitch Steel Bicycle Trailer Coupling Adapter Attachment Bike Trailer Parts For Pet Bike Trailers Stroller
Aliexpress UK
PIN 1 - Yellow Wire (Left Direction Indicator). PIN 4 - Green Wire (Right Direction Indicator). Black plastic construction prevents rusting, prolongs its service life. Screw connection outside the socket, easy to install.
eBay
Bicycle Axle Adapter Stainless Steel Bicycle Trailer Connection Adapter Easy Installation Baby Pet Bike Trailer Accessory
Aliexpress UK
Used by Ifor Williams and many other trailer manufacturers. If we can avoid these we will try.
eBay
Bike Bike Trailer Hitch Coupler Hitch Connector Attachment Angled Elbow Trailer Coupler Adapter for Childrens Trailers and Cargo
Aliexpress UK
13 pin plug (car) to Twin 7 pin N & S Type Socket (trailer / caravan). 1 x Conversion Adaptor without cable. Plug and play design, insert into socket, twist and lock, no need to change any cable. Used on newer cars with a 13 pin plug on the towbar.
eBay
Bike Trailer Hitch Coupler Universal Adapter Connector Attachment Cycling Bike Trailer Towing Solutions Nylon bike trailer hitch
Aliexpress UK
Suitable for all European standard trailers. Establishes a secure connection between your major vehicle and the additional trailer. Transfers the electronic signal lights from the vehicle to trailer. Converts the 7-pin male socket to the 13-pin female socket on your trailer. Slim line design: same diameter as a normal trailer plug and just over half the length. Excellent quality black plastic housing helps prevent rusting. Simple to fit. Waterproof for all road and weather conditions. Carries the European CE mark of approval, do NOT buy adaptors unless they have this endorsement.
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Universal MTB Road Bike Trailer Steel Linker Bicycle Hitch Trailer Connector Adapter Attachment Model Baby Pet Coupler Linker
Aliexpress UK
Adaptor Lead, 7 Pin socket to 2 x 13 pin sockets, 12V, 12N+ 12S, Caravan, Adapter. Adaptor lead is fitted with two 7 pin plugs (12S + 12N) and one 13 pin flying socket. Used where the Car has two 7 pin sockets and the caravan has a 13 pin plug.
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27-32mm Bike Trailer Attachment Trailer Hitch Attachments 270 Degree Rotation Alloy Cycling Adapter Accessories For Commute Pet
Aliexpress UK
PIN 1 - Yellow Wire (Left Direction Indicator). PIN 4 - Green Wire (Right Direction Indicator). Black plastic construction prevents rusting, prolongs its service life. Screw connection outside the socket, easy to install.
eBay
Coupler Hitch Attachments Bike Bicycle Trailer Universal Bike Trailer Hitch Linker Connector Bicycle Adapter For Children's
Aliexpress UK