KT Click N Tow Trailer Light Wiring Harness System The KT Click N Tow Trailer Light Wiring Harness System is a simple colour coded wiring system which is waterproof universal and compatible with all brands of trailer lamps. The System is designed for a simple easy Trailer Light Wiring Harness Installation. Simply Click N Tow. KT58054 – KT C N T 4P TO 4P MAIN WIRE HARNESS 6m Harness from trailer plug to trailer lamp Universal compatible with all brands of trailer lamps Completely waterproof Suits marine trailers up to 18ft / 5.6m Colour Code #5 (Blue) ** Designed for both left & right hand side **