Description SPI Tether Switch-High quality tether switch built to OEM specifications. OEM Part Numbers; 410-1067-00Applications:2003 Ski-Doo MX Z 550F 2004 Ski-Doo MX Z 550F 2005 Ski-Doo MX Z 550F 2006 Ski-Doo MX Z 550F 2007 Ski-Doo MX Z 550F