This Alko 50mm ball type fixed coupling is designed to be used on trailer up to 2500 kg ATM (Aggregate Trailer Mass) and with a maximum tow ball weight of 250 kg.

This unique product incorporates a clamping system that grips the sides of a specially designed 50mm towball and resists movement of the trailer. This action slows down any tendency for the trailer to sway or veer from a straight condition. This is particularly beneficial when large trailers such as caravans are buffeted by side winds or by a passing truck and trailer combination. Note: This type of coupling must only be used with a 50mm ball which has an anti-rotation plate for attachment to the vehicle fitted.

Capacity : 2500 kg
Suits Ball Size: 50mm
Mounting Pattern: 184mm x 54mm
Hole Diameter: 13.5mm
Ball to First Hole: 203mm
Surface Finish: Zinc plated

AKS 3004 Stabilizer Kit – (special anti-rotation Alko towball, towbar adapter included). Suits electric brakes

Most European caravans have this fitted