Do I need a Weight Distribution Hitch Kit for my Caravan?

22 Apr 2016

Do I need a Weight Distribution Hitch Kit for my Caravan?

A Weight Distribution Hitch Kit (WDH) commonly referred to as an ANTI SWAY BAR is a device designed to transfer weight evenly across all wheels of the motor vehicle and trailer. The WDH transfers weight from the Towball evenly across the Towing vehicle. The aim of this is to level out and evenly distribute weight across the car and the Trailer to reduce Trailer sway.



Because adding the additional weight of a trailer to a vehicle will change the dynamics of the vehicles steering and braking, most vehicle manufactures recommend the use of a weight distribution hitch and some even make it a requirement once the trailer exceeds a specified weight.



The WDH kits come in many capacities. There are light weight kits, which consist of two bars or four bars and three heavy duty versions which consist of two thick bars and usually an adjustable ball mount,
These kits are categorized according to their Tow ball Capacity.


How do I know which kit is suitable for my Trailer/Caravan?

The 2 key questions to be asked here are:

  1. Does the Trailer push the rear of the towing vehicle down at all?
  2. What is the actual ball load at the Trailer Coupling? (Note -This is not the figure used on the compliance plate that states the Ball weight of the Trailer off the production line)

To get an accurate measurement of the Trailer Ball Load you will need to have the Trailer fully loaded to your needs. You will then need a set of Ball Weight Scales, available from most auto accessory stores. Or you can take your trailer to a public weigh bridge.

You can determine which WDH kit is right for you by using the following table.

A Ball Load of WDH Kit
1kg to 80kg No kit required
80kg to 100kg Light Weight 2 Bar kit
100 to 130kg Light Weight 4 Bar kit
120 to 270kg Heavy Duty 600lb (272kg) kit
250 to 350kg Heavy Duty 800lb (363kg) kit
330 to 450kg Heavy Duty 1000lb (454kg) kit
(Larger Towball required)


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