Description SPI Tether Switch-High quality tether switch built to OEM specifications. OEM Part Numbers; 410-1067-00Applications:2011 Ski-Doo MX Z Sport 550F 2012 Ski-Doo MX Z Sport 550F 2013 Ski-Doo MX Z Sport 550F 2014 Ski-Doo MX Z Sport 550F