watch 03:03 The Loop (Games) Do you like this video? Class 4 LEGO → System → Trains → 9V 10077 << 10078 >> 10079 Train Connection Wire is a Trains set released in 2003. 9v LEGO Trains require 9v tracks and rails, which conduct electricity. Compatible tracks and rails are #4515, #4519, #4520, #4531 and any track collections consisting of these item numbers. Categories: Sets with less than 100 pieces Unknown Price Class 4 articles 10000 sets 2003 sets Trains 9V Community content is available under CC-BY-SA unless otherwise noted. Facts... more about "10078 Train Connection Wire"RDF feedAges5+ +ArticleRating4 +Image10078-Train Connection Wire.jpg +InfoboxTemplateSet +Item №10178 +Pieces1 +Released2003 +ThemeTrains +TitleTrain Connection Wire +TypeSet +