Product details
Ring 12S 7‑pin plug with metal casing – tough trailer electrics
This Ring 12S 7‑pin plug is one of those small but essential bits of kit that makes towing less of a headache. The metal casing gives extra protection against knocks, grit and the odd clumsy booting-in of the plug — a proper bonus in winter when things get mucky. It’s aimed at anyone who wants a dependable, weather-resistant connection for trailer lights and other 12S circuits.
key features
- Metal casing for improved impact and corrosion resistance — helps keep the contacts protected.
- Standard 12S 7‑pin wiring so it’s compatible with typical trailer electrics.
- Lightweight and compact (102 g) yet robust enough for regular use.
- Simple to fit — straightforward wiring and mounting, so you won’t be faffing about under the tow bar for hours.
- Manufacturer model A0023, made by Ring Automotive for consistent quality.
why choose this plug
If you want something that just works and won’t fall apart after a season, this is a sensible pick. The metal shell reduces wear on the plastic parts and helps keep moisture out, which means fewer flaky connections and less chance of brake lights flickering at the worst possible moment. It’s practical, reliable and avoids unnecessary faff.
installation and compatibility
Fitting is deliberately straightforward — if you’re familiar with basic trailer electrics, you’ll have it done in no time. Before you fit it, double-check that your vehicle and trailer use the 12S 7‑pin standard. Typical uses include:
- Towing small trailers, caravans or horse boxes where a reliable 7‑pin connection is required.
- Replacing worn or damaged plugs to restore proper lighting and auxiliary functions.
- Work trailers that see frequent connection and disconnection and need tougher hardware.
Wondering about heavy commercial use? For most everyday towing jobs this plug will do the business, but if you’ve got very heavy-duty or specialised requirements it’s worth checking load ratings and compatibility first. At 102 g and with compact dimensions, it’s easy to keep as a spare in the boot.
Technical details: Manufacturer Ring Automotive Ltd., model A0023, item weight 102 g, package dimensions 14.6 x 12.4 x 4.3 cm. Built to give a long service life and cut down on common trailer‑electrics headaches — less fiddling, more getting on with the job.




