• This new ALKO AK161 coupling head is for a 50mm ball and a 50mm diameter draw tube. 
• Shims are available for fitting this coupling to both 35mm & 45mm draw tubes
• The bolt holes on the side are 50mm to 55mm apart and the front one is elongated.
• These head are fitted to trailer and caravans with a AL-KO 161s coupling hitch.
• They are also a replacement for the AKS Stabiliser Coupling heads.
• 1600kg Load Capacity
• Here is a You-tube link for these new coupling features

If NIL stock these will be 2 weeks ex UK

Each