Shop › LUSFB100 Image 1 of 1 LUSFB100 $13.50 3-prong flasher unit for use with screw terminals. Lucas boxed. TR2-TR3-TR3A (up to TS60K). LUSFB100, 141-750 Add To Cart Added! 3-prong flasher unit for use with screw terminals. Lucas boxed. TR2-TR3-TR3A (up to TS60K). LUSFB100, 141-750 You Might Also Like Wiring Harness, Cloth Wrap $525.00 RFK159 from $6.00 LU54520443 $85.00 LU31284 $65.00 Ignition Tune-Up, TR2 thru TR6 from $2.50