Ignition block provided with n. 2 keys and n.4 connectors. Original Code Suzuki: 37100-47010 and 37100-47011. Compatible with the following models: Suzuki GS 1000 G 1979 - Suzuki GS 1000 S 1979-1980 - Suzuki GS 1100 and 1979-1983 - Suzuki GS 400 1979-1983 - Suzuki GS 450 AND 1980-1983 - Suzuki GS 550 1979-1983 - Suzuki GS 750 1979-1983 - Suzuki GS 850 G 1979-1983 - SUZUKI GSX 400 AND 1980-1981 - SUZUKI GSX 400 L 1981 - SUZUKI GSX 400 S 1984 - SUZUKI GSX 550 AND 1983-1984 - SUZUKI GSX 550 ES 1983-1985.