Moto Guzzi Service Codes:
Breva 850 & 1100 – 36421 or 36424; With joystick: 28315
1200 Sport – 36421 - For models with button control, (i.e. like the Griso set-up) --OR-- 28315 - for the ‘Joystick’ type (like the Norge/Breva 11 etc.).
2007-10 Norge 1200 2V & 2012+ 4V – 28315
Griso 850 , 1100 & 1200 – 12425
Griso 8V – 12425
Bellagio – 21959
Stelvio – 10695
With thanks to Guzzitech.