Verify your length please.  This brake rod about 16"/406mm.  Should fit most early Guzzi loop with civilian pegs (NOT floorboards). 

This listing includes everything shown, in stainless steel: 

1267-6001  brake rod 
9576-0260  knurled adjusting nut 
9571-6368  barrel 
9550-0222  cotter pin 
9510-0137  washer 

I will answer questions promptly, thanks for looking.