The thule 7 to 13 pin power adaptor is ideally designed for use with the thule tow bar mounted racks and allows the use of 7 pin electrical connections to be used with cars with 13 pins quick and easy to use the thule 7 to 13 pin power adaptor features converts vehicles with a 7 pin electrical outlet to the 13 pin connection ideal combination with thule euroclassic racks 5 year manufacturers warranty