ARK Trailer 7 Pin Large Round Metal Socket Connector – ADR Approved Silver (SKU: LMS7B)

The ARK LMS7B 7-Pin Large Round Metal Socket is the go-to solution for high-performance trailer wiring. Designed with a tough, corrosion-resistant silver metal casing and compliant with ADR standards, this socket ensures a strong, safe, and road-legal connection between your vehicle and trailer.

Compatible with the standard 7-pin large round format used across Australia, it’s ideal for connecting tail lights, indicators, brake lights, and power to caravan accessories. The robust housing helps prevent cracking, fatigue, and terminal damage—especially when towing in rough conditions.

Use it together with the ARK LMP7 metal plug for the ultimate plug-and-play trailer connection setup.

Key Features:

• 7-pin large round metal socket – tow vehicle side
• Durable silver-finished metal construction
• Resists cracking, vibration damage, and UV degradation
• ADR compliant – suitable for legal road use
• Compatible with ARK LMP7 and other standard 7-pin round plugs
• Ideal for high-current trailer and caravan wiring

If you’re upgrading your trailer wiring or replacing a worn-out plastic socket, the LMS7B gives you superior connection quality and longevity.

Frequently Asked Questions

Q: Is this socket made from metal?

A: Yes, it features a tough metal shell with a silver finish for maximum durability.

Q: What plug does this connect with?

A: It pairs with standard 7-pin large round trailer plugs like the ARK LMP7.

Q: Is it ADR approved?

A: Yes, it’s fully compliant with Australian Design Rules for trailer lighting systems.

Q: Where is this typically installed?

A: This socket is mounted on the towing vehicle side.

Q: Can it handle high current loads?

A: Yes, it’s suitable for electric brake systems, battery charging, and other high-current uses.

Evaluation & Recommendation

This socket is perfect for:

• Users needing a strong, weather-resistant towing socket
• Heavy-duty or off-road trailer setups requiring robust connections
• Replacing damaged or worn plastic sockets
• Anyone pairing with ARK LMP7 or similar 7-pin plugs

Installation Tips:

• Mount to vehicle’s rear electrical panel or towbar bracket
• Wire pins according to the standard 7-pin round trailer wiring chart
• Use heat shrink tubing or dielectric grease to prevent corrosion
• Test with trailer lights before hitting the road

Need help wiring or pairing it with the right plug? Contact us for setup support or bundled kits.