Purpleline Kojack Lite Jack / Levelling System For Caravan (Single Axle). Product Code :KJ4000S. Product KJ4000S. Kojack - Single Axle. Does your caravan have a jacking point?. kojack is the answer. Custom designed brackets allow you to easily and effortlessly jack & level your caravan without the need for drilling your caravan chassis; which can void your warranty.
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