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* Top Quality Triumph Unit & Pre-Unit Twins 1" Handlebar Clamp & Screw Set For The Lucas 31563 Switch
M Part number is 70-3863 or E3863
Oil pressure relief valve comes complete with piston
M Part number is 40-2841
Lucas Triumph / BSA Rear Brake Light Switches (1) - Choose Switch Type / Application 1970 * Top Quality Triumph UnitKeep your classic British motorcycle in full operating condition by installing a new Lucas or EMGO rear brake light switch. All switches are OEM quality, however, Lucas is original! We have a few different variations that you must choose from using our drop down menu options Lucas EMGO #54033234 This style of switch (EMGO and Lucas brands) is the "pull type" operated by a lever and spring and mounts onto a chainguard fitted to most Triumph 650 unit