AL-KO 6T Ring Coupling – 6000kg 75mm Pintle Hook Trailer Coupling

The AL-KO 6T Ring Coupling (6000kg rated) is designed for heavy-duty trailer applications where a standard 50 mm ball coupling is not sufficient. Featuring a 75 mm (3″) ring, it connects to a pintle hook system, making it ideal for commercial, off-road, and high-load towing setups.

Unlike ball couplings (typically limited to 3500 kg), ring couplings are used when higher towing capacities are required, particularly with trucks and off-road vehicles.

Key Features

• 6000kg (6 tonne) load rating

• 75mm internal ring size (3″ pintle eye)

• Designed to suit pintle hook towing systems

• Heavy-duty steel construction with zinc plated finish

• 4-hole mounting pattern for secure installation

• Ideal for commercial, military, and off-road trailers

Typical mounting pattern:

• Approx. 182mm × 52mm bolt spacing

• Hole diameter: ~16.8mm

Why Choose a Ring Coupling?

Ring couplings are essential when:

• Towing exceeds 3500kg (towball limit)

• Using trucks or heavy-duty tow vehicles

• Operating in off-road or rough terrain conditions

They provide:

• Greater articulation than ball couplings

• Increased strength under heavy loads

• Improved durability in harsh environments

Applications

• Heavy-duty trailers

• Plant and equipment trailers

• Off-road trailers

• Agricultural and mining trailers

• Military/commercial towing setups